Category Archives: Features

Engineering Considerations for Pleasing the Picky Business Services Customer

Laura Hamilton

Laura Hamilton

Jones-NCTI University ProgramVoice and data services to business customers continue to offer a hefty revenue opportunity for cable operators, but those juicy prospects come with their own special set of engineering challenges. The small- and medium-business (SMB) space has long been underserved by other telecom players and is a sweet spot for cable ops. But no matter their size, these kinds of subscribers are tough customers. They demand a completely bulletproof, stellar quality of service (QoS) and quality of experience (QoE), and they want it backed up with concrete service level agreements (SLAs).

After all, many of these SMBs depend completely on their voice and data services to ensure they really get their business done every day. So, while there’s not denying that cable ops are expanding into this market from their residential base, this is not residential service. If you think your residential customers are unforgiving, then imagine what a small business sub would be like if his voice or data went down for several hours.

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Reaching Out to Businesses

But the bottom line is that MSOs currently have solid networks in place to supply a huge variety of business customers with a wide range of quality voice and data services. They’re sitting right along cable’s networks, and perhaps the best proof that cable understands the vast potentials of its networking prowess to serve SMBs comes from recent reports that it plans to beef up its workforce to reach out particularly to those customers.

Take some of the latest word from Comcast CFO Michael J. Angelakis at a Morgan Stanley Technology, Media & Telecom conference earlier this month wherein he said the op could hire 500 people this year in business services (according to an article in the Philadelphia Inquirer). Angelakis said the new hires would mostly take aim at companies that have about 20 employees. “There’s [also] a very large market with some real pent-up demand, with real need for high-bandwidth, really good services, and that’s in the zero-to-a-couple-hundred employee companies,” he said at the confab.

Of course, making those kinds of proclamations to the financial community generally means you had better have the engineering muscle to back it up. The good news for Comcast, and really, cable operators in general, is that doesn’t look like a problem.

The Cable Show, Los Angeles, CA

Robust Systems

John Dahlquist, vice president of marketing at Aurora Networks (www.aurora.com) is quick to point out to BGR that cable operators already have robust networks in place to support a vast array of commercial services to companies of many sizes. “With the right solutions in place, such as GEPON and RFoG for fiber infrastructure or fiber deep and digital return for increasing bandwidth, cable operators can offer affordable yet very high speeds to businesses through networks that provide reliable and scalable services,” he says.

“Cable operators don’t need to build, maintain and manage separate networks or multiple platforms and backoffice software to deliver commercial services. Cable operators can have the greatest impact by providing reliable, advanced commercial services at competitive prices. They can do that best by utilizing the network resources they already have in place.”

Dahlquist explains that this not only minimizes the cost to deploy, but also reduces the time to deploy given that so much of the needed solution is already in place today.

Also calling out cable’s unique current positioning in the business services arena is Rafael Fonseca, VP of systems engineering and technical marketing, at Cedar Point Communications (www.cedarpointcom.com) in a recent conversation with BGR. As cable converges its networking capabilities with IP technology and builds further on its capabilities of a single network for all services, it leverages its technical advantages against competitors from both an OPEX and CAPEX standpoint, he says. Add in the converging nature of backoffice technologies, and cable gains even more distinctive advantages, he believes.

Keeping Costs Down

In the end, SMBs – and companies of any size for that matter – progressively want more bandwidth, but they increasingly demand it at a lower cost. So a key factor in all this for any cable operator is going to be providing that while keeping its own operating expenses down as well.

“If cable operators can keep their operating costs low, they can pass any savings on to the customer,” Aurora’s Dahlquist points out. “Reducing OPEX and gaining greater efficiencies within the network also frees up cable operator resources for other services or areas of operations that can benefit customers.”

Dahlquist puts it simply when he says that cable operators can win commercial customers with services that are robust, reliable and competitive with similar services offered by competitors. He believes that inherently, by eliminating amplifiers from the network, cable operators are driving fiber deeper, ultimately passing more potential commercial customers. This increases the commercial footprint that can be served from their residential network, providing a lower capital cost for signing up a new commercial customer, he concludes.

“As cable operators study how they can evolve their networks for the delivery of commercial services, they can look to cut costs and improve efficiency, such as eliminating amplifiers in the network,” Dahlquist adds. “And by reducing active network elements, cable operators minimize plant maintenance and gain significant savings with a reduction in network power costs.”

And of course, those savings can be passed on to the business customer, who’ll be very happy to take those dollars, thank you very much.

Stress Tests

An obvious gorilla in the room you need to immediately address when talking about business services involves resiliency and redundancy in the cable network. “Businesses generate revenue by having services up all the time,” Cedar Point’s Fonseca stresses. “Outages translate directly to their bottom line.”

To that end, Fonseca describes an interesting point that some operators may not think of when first addressing any one particular SMB, and the unforeseen stresses that customer could ultimately place on the cable system. That is, at certain times, there could be a significant increase in network traffic based on the type of business being served. The operator must engineer its business services with the reality in mind that it could be serving a subscriber that has exploding voice and data needs around a particular time of year or a particular event – say Mother’s Day or the holiday season, for example.

Those kinds of issues are the reason that all the different entities within a cable op must be in alignment before it gets its feet wet in business services, points out Cedar Point Director of Marketing Jim Gayton. So, sales, marketing and training all need to work together closely from Day 1 to anticipate these potential problems and prepare for them before they’re experienced by the customer.

By many accounts, U.S. MSOs are making all the right moves to attract more and more small- and medium-sized business customers, and that could ultimately lead to even bigger commercial customers. In fact, a good indicator of all these kind of potentials is perhaps just over the Atlantic. Cedar Point’s Fonseca recently sat on a panel at the Cable Congress in Brussels, and reports that during that session, Virgin Media said it was getting around 10% of its total business from commercial customers. The opportunities behind those kind of numbers certainly has to appeal to U.S. operators, which already have powerful networks in place to reach a large mass of currently underserved business customers.

Laura Hamilton is editor-in-chief at BGR. Email her at laura.hamilton@comcast.net.

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Editor’s Letter – The Big Gig

Laura Hamilton

Laura Hamilton

Jones-NCTI University ProgramGoogle certainly got the buzz machine humming a couple weeks ago with its announcement that it plans to build and test ultra high-speed broadband networks in a small number of trial locations across the United States. As you’ve no doubt heard, the company says it plans to deliver Internet speeds more than 100 times faster than what most Americans have access to today with 1 gigabit per second, FTTH connections.

“We plan to offer service at a competitive price to at least 50,000 and potentially up to 500,000 people,” Minnie Ingersoll and James Kelly, Google product managers, posted in a blog.

What that competitive price ends up being obviously remains to be seen. Sure, downloading a high-def, full-length feature film in less than five minutes or watching a 3D video of a university lecture would be very cool, but what will subscribers in the real world, beyond trials, actually pay on a regular basis to do that? While Google was careful to stress that what it wants to do is “experiment” and “trial,” it’s hard to imagine other service providers quickly jumping on any kind of ultra high-speed bandwagon if consumers don’t show a willingness to open their wallets to ensure a solid ROI.

Triveni Guide Builder Mobile

Subs invariably want faster and faster speeds. But paying for that is sometimes another matter. One way of gauging this is to check out the blogosphere right after a major rollout by a cable op of DOCSIS 3.0. Often, bloggers will wax poetic about the new wideband speeds they’re being offered, but many will complain openly about the additional price tag.

But pricing issues aside, Google’s plan to test new ways to build fiber networks is going to be fascinating to watch. And the lessons learned will be a great benefit to cable operators — who’ll most certainly be at the forefront when the real-world ultra high-speed evolution ensues.

Laura Hamilton is editor-in-chief at BGR. Email her at laura.hamilton@comcast.net.

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Consumers Name Cost as Major High-Speed Data Hurdle

Cost is the major barrier that is keeping people who haven’t already taken up high-speed data services from doing so, according to recent data from the FCC (www.fcc.gov). The Commission just released the results of a national random survey it conducted of adults in October and November 2009 to assess attitudes toward broadband. The survey found that 35% of adult Americans do not have high-speed Internet connections at home — or approximately 80 million adults and 13 million children over the age of five.

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More than a third — 36 percent of non-adopters, or 28 million adults — said they do not have home broadband because they feel the monthly fee is too expensive (15%), they cannot afford a computer, the installation fee is too high (10%), or they do not want to enter into a long-term service contract (9%).

The FCC survey also indicated that digital literacy problems as well as some people’s belief that high-speed data services lacked relevance to their lives were major stumbling blocks to high-speed data adoption.

SCTE Canada Show

NCTA (www.ncta.com) President and CEO Kyle McSlarrow responded to the FCC’s “Broadband Adoption and Use in America” survey results by pointing out that major cable operators recently proposed an “Adoption Plus” broadband program targeted at millions of middle-school students from low-income families that would combine discounted service and equipment with digital literacy training. “We are committed to working with the FCC and other stakeholders on ‘A+’ or other similar programs that attack the key barriers to broadband adoption, and support efforts in Congress by Sen. Rockefeller and Reps. Markey and Matsui to increase broadband adoption among low-income families,” McSlarrow said in a statement.

The FCC released the survey results as a lead-up to its planned delivery of a National Broadband Plan to Congress on March 17.

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Cable Show Engineering Preview

Network architecture, operational efficiencies and advanced hardware and software services will take center stage at this year’s 2010 Spring Technical Forum, co-hosted by SCTE (www.scte.org), CableLabs (www.cablelabs.com) and NCTA (www.ncta.com). The confab – which includes SCTE’s Conference on Emerging Technologies and NCTA’s annual Technical Papers program – will take place during the Cable Show 2010, May 11-13 in Los Angeles.

The Cable Show, Los Angeles, CA

Nearly 30 authors will present the highlights of their technical papers in one of the following sessions:

  • Bit Players: Data, Software and the Cable Evolution
  • Generation Next: Inventing the Access Networks of Tomorrow
  • An Education in EBIF: Advancing Cable’s ITV Foundation
  • Cloudy, With a Chance of Breakthrough: New Models for IP Service Delivery
  • Quest for Quality: Optimization Approaches for the Digital Era
  • Depth Perceptions: Technical Approaches for 3D Video Integration
  • Capacity for Change: Capacity Expansion in Theory and in Practice

The multi-day conference will feature a series of panels including a strategic view of cable’s technology future from the industry’s chief technical leadership; practical approaches to improved energy efficiency and cost savings associated with alternative energies and best practices; and a customized view of the entire cable technology ecosystem geared for the local West Coast engineering community.

For more info, visit www.thecableshow.com.

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CableLabs Attendees Taste-Test Taste Engine

Laura Hamilton

What exactly is a taste engine? According to attendees at the recent CableLabs (www.cablelabs.com) Winter Conference held in Denver, it’s the “The Best Product Idea” from the confab’s Innovation Showcase. Dubbed Jinni (www.jinni.com), the solution is described as the first taste engine for movies and TV shows that uses content genetics and user taste profiling to power next-generation TV guides. And if you’re wondering just what that means, Jinni is a good example of a tool that tends to be best understood after you’ve put it into action. So, a quick visit to jinni.com to play around with the engine there is a solid way to get a feel for what it does.

Cable operators can integrate Jinni’s features into their systems via a comprehensive set of Web-based APIs for content delivery to set-tops, PCs and mobile devices. Jinni also partners with SeaChange International (www.schange.com), OpenTV (www.opentv.com) and NDS (www.nds.com), who offer Jinni’s discovery features as part of their solutions.

Jinni TV User Interface Example

Jinni Sample TV Interface

Most Likely to Succeed

The Innovation Showcase featured 11 vendors – both startups and established companies – who participated in a lightning round of presentations where each company had 10 minutes each to strut their technical stuff. In an informal poll of the audience, Jinni snagged the bragging rights to boast that attendees thought it was the solution most likely to succeed. And beyond this nod, the company also has enjoyed some other fresh indicators that Jinni’s time just might have come.

Triveni Digital

“We’ve received numerous RFPs in recent months that indicate operator interest in implementing search and recommendations, including advanced features,” Mike Pohl, Jinni’s CEO, tells BGR. “So we feel like 2010 could be a great year for us, as many operators are seeking the kind of service we offer. And in conversation, potential customers and partners immediately grasp the value of our service: enabling users to easily, intuitively choose within large content libraries and across many channels.”

Pohl also reports that a Tier 1 U.S. cable company is a new customer, and is in process of implementing Jinni features now. “We are in advanced negotiations with an additional Tier 1 cable company,” he adds. “We hope to add to this in the course of the year.”

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Ideas Galore

The Innovation Showcase also featured a wide variety of other pioneering technologies, mainly revolving around four themes: hardware at the chip level, social networking, TV everywhere, and interactive video. Here’s a rundown of what attendees saw:

Clearleap (www.clearleap.com) demonstrated an application that it developed with FourthWall Media (www.fourthwallmedia.tv) and The Weather Channel – a proof of concept branded EBIF weather app integrated with video. The unbound app integrates data and graphics to deliver current weather conditions updated every few minutes, and video from on-camera meteorologists to present the local forecast information for multiple U.S. cities. The video, updated twice daily, is available to viewers within minutes of its production, delivering a Web-like experience on TV. Using FourthWall’s ITV development tools and Clearleap’s IP-based video content management and advertising platform, the video is integrated into the application and the operator’s existing VOD infrastructure.

iLoop Mobile (www.iloopmobile.com) used case studies and a live demo to display turnkey solutions for cable operators that enable mobile marketing for local, regional and national advertisers. The vendor reports that SMS text messaging is available on 97% of phones in use, with 60% of all mobile phone users texting regularly. That’s a big opportunity for MSOs, iLoop thinks, since SMS-based mobile marketing “easily integrates with cable ad schedules, allowing the viewer to instantly interact to receive mobile coupons and promotional offers that convert to measurable in-store traffic and sales.”

The Cable Show, Los Angeles, CA

IPgallery (www.ipgallery.com) exhibited its advanced multimedia application suite, “My Contacts Zone” – via a personalized end user communications portal. By leveraging the growing communications across social networks, and use of Internet telephony services like Skype/Google Talk, IPgallery says it will provide cable ops with the ability to expand their customer base by “marketing to any customer that has broadband” and deploy new advanced multimedia applications to their embedded base, independent of their current switching or access networks. IPgallery has developed this application suite through the creation of a social networking gateway, with integration across Facebook, Myspace, Twitter, YouTube, Skype, Google Talk and Google Maps.

Miniweb Interactive (www.miniweb.tv) displayed its Broadband Content Guide and used a hybrid set-top capable of playing both traditional broadcast (DTH, DTT or cable) TV, and Internet video, either over the cable network or the home network. Miniweb’s solution converges any number of Internet video sources into a single TV experience. With Miniweb, MSOs reportedly can provide centralized billing, community, search, recommendations and advertising functions that compliment and work with every online provider that is part of the extended guide.

SCTE Canadian Summit 2010

Pace Americas (www.pace.com) took on the red-hot topic of multi-room DVRs. The company’s Home Content Sharing Multi-room DVR reportedly pushes the bandwidth limitations of MoCA 1.1 and demonstrates advanced video processing and routing technology through a dedicated high-performance, low power consumption 1200 MIPS network processor. The architecture is said to enable a capacity of nine simultaneous HD streams within the home, including six simultaneous recordings. “With the Pace Home Content Sharing system, every television in the home becomes a fully functioning dual tuner HD-DVR with all the features that subscribers are familiar with,” the company says.

• In the cloud was Related Content Database, also known as RCDb (www.rcdb.net), which currently provides software and network services to the likes of Disney, 20th Century Fox, Sony Pictures and Netflix. At the CableLabs Winter Conference, it demonstrated a Java client application that currently powers secure network communications for millions of Blu-ray Disc and connected devices; an enterprise class J2EE server for managing IP-connected device services, content updates and user profiles; and a cloud database service of timecode-based related content metadata for movies and TV programs.

SeaChange International (www.schange.com) concentrated on multi-screen video delivery via its Intelligent Video Platform. The conference exhibition used the company’s Intelligent Video Platform to show seamless content delivery across three screens – TV, PC and mobile — and focused specifically on the ability to pause/resume across multiple screens. The demo began by showing streaming to the PC. The content then was paused and resumed from the same point on a mobile phone, and again on the TV.

Trailer Park (www.trailerpark.com) teamed with Jargon Technologies to present a mobile platform using various mobile devices — iPhones, Blackberrys or Androids — to connect to tru2way cable boxes over local home networks to interact with the TV. Instead of using the TV remote, the demo showed how subs could use their phones to guide their cable experiences. For example, they could engage in live voting or find out more info on what’s currently playing on screen. Trailer Park says that the product is not only a mobile application but also a mobile platform that can be extended with ideas from third parties, such as creating interactive mobile/TV advertisements.

Wowza Media Systems (www.wowzamedia.com) showed off its newest unified media server focused on simplifying video/audio delivery for Web TV, mobile TV and OTT IPTV by eliminating the need for multiple client specific encoder and server infrastructures. The company reports that its media server employs a unified workflow model capable of streaming video from one common H.264 live encode or VOD asset base to a variety of desktop, mobile and living room playback clients from a single server infrastructure. The CableLabs demo showed a simultaneous delivery from one multi-bit rate MPEG-TS live source to multiple players using appropriate transport protocols: Adobe Flash player (RTMP), Microsoft Silverlight player (HTTP smooth streaming), Apple QuickTime player (RTSP), iPhone (HTTP Live Streaming), Android phones and other mobile devices (RTSP/3GP), as well as the IPTV set-top boxes (MPEG-TS).

Zenverge (www.zenverge.com) explained the technology behind its ZEN-powered single-chip, whole-home DVR and multi-screen solution. Through a RUIV (remote user interface embedded in video), the user interface is virtualized in a central gateway/server and inserted into each video stream. All display devices (including those in the installed base) are said to benefit from the same look and feel without the need for special middleware or application software running on a client set-top or the display device. Additionally, ZEN reportedly enables the gateway to transform all content (live or recorded) to fit the decode and to display capabilities of each screen and the available network bandwidth at any given time. This provisioning also is said to enable the technology to be deployed ubiquitously with all networks including 802.11n, MoCA, HPNA, G.Hn, etc., while lowering and/or eliminating the need for rewiring or adding repeaters, etc. “The total cost of the whole-home/multi-screen solution is thus optimized by significantly reducing the cost of client set-tops or eliminating them altogether, as well as by reducing the cost of whole-home network coverage,” Zenverge reports.

Laura Hamilton is editor-in-chief at BGR. Email her at laura.hamilton@comcast.net.

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DOCSIS 3.0: Keeping Up With the Upstream


By Laura Hamilton

Laura HamiltonLast month, Broadband Gear Report asked a variety of vendors that serve the cable industry what they thought 2010 might hold for the cable engineering community. The issues surrounding DOCSIS 3.0 were particularly sizzling — especially topics that touched on its upstream channel bonding capabilities and cable operators’ commitment to deploying them in a major way. (If you want to check out our 2010 preview two-part article, you can read it here: part 1 and part 2)

So, with all this again-renewed upstream buzz, we decided to dig a bit deeper into the tried-and-true issue. And while you may think you’ve heard it all before, here’s some feedback about why certain experts see this year as a tipping point when it comes to upstream channel bonding.

“Most MSOs will be challenged by an increased demand for HSD bandwidth, which will force them to continue to expand their DOCSIS 3.0 footprint and will also force them to continue to increase the number of channels (in their spectrum) associated with high-speed data,” Tom Cloonan, chief strategy officer at ARRIS (www.arrisi.com), tells BGR. “Upstream bandwidths will likely be pushed to levels that require them to begin deploying upstream channel bonding in addition to downstream channel bonding.”

The Cable Show

Floyd Wagoner, director, global product marketing and marketing communications, Home and Networks Mobility, Access Networks Solutions at Motorola (www.motorola.com), also believes that within the next year, the cable industry will truly shift to begin to look at ways to conquer the upstream throughput dilemma.

“As the upstream is assigned to a relatively noisy area of the spectrum, cable operators will need to leverage the existing DOCSIS feature set to first clean up the noisy and barren areas of the RF upstream signal range and then apply channel bonding to truly exploit their existing investment,” Wagoner adds.

Now — Really?

So, you’ve heard all this talk about upstream channel bonding before. Why should you believe that this year is when it might really happen?

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ARRIS’ Cloonan sees MSOs beginning to seriously consider upstream channel bonding deployments because their subscriber bandwidth usage (in the upstream direction) has continued to grow to a level where a single upstream channel will not be able to provide adequate bandwidth for some of their heavy users in the future. “We expect that a lot of this bandwidth is being driven by peer-to-peer applications that exchange movies over both the downstream and upstream DOCSIS channels,” he stresses.

OK. Be that as it may, what about the very limited availability of CableLabs (www.cablelabs.com)-certified DOCSIS 3.0 CMTS hardware/software? How does this affect the move forward on deploying D3’s upstream bonding prowess?

Just-In-Time

Cloonan explains that most MSOs are only deploying with a subset of the DOCSIS 3.0 feature set, and many of them seem happy with the DOCSIS CMTS equipment having passed tests associated with the particular DOCSIS 3.0 features that they are using. “Many vendors seem to be following this ‘just-in-time’ path, delivering tested features just as the MSOs are planning to deploy them,” Cloonan suggests. “In the end, though, we expect that full DOCSIS 3.0 qualification will occur for the products.”

As a historical reference, Motorola’s Wagoner points out that DOCSIS 3.0 with channel bonding took the very same path several years ago. “Early adopters deployed non-certified solutions in order to defeat an emerging competitive threat. He suggests that vendors are delivering DOCSIS 3.0 capabilities as the market demands, and prior to reaching full certification.

Wagoner explains that one of the challenges that vendors face in reaching full certification at any level is striking a balance between the delivery of features and functionality demanded by customers and the feature and functionality required by CableLabs to reach a certification milestone.

“Even with the top vendors having advanced engineering capabilities, it may not be economically — or with regards to key resources — be possible to develop an entire DOCSIS 3.0 feature set ahead of when market demand drives revenue for those same features and capabilities,” he says. “DOCSIS 3.0 is a very sophisticated feature set that requires vendors to ensure proper operation of a broad set of newly developed DOCSIS 3.0 capabilities, while also supporting regression and compatibility testing with their installed base of DOCSIS 1.x and 2.0 software releases currently deployed in the field.”

The cable operator community has informally communicated its willingness to forego vendors achieving full certification as long as vendors are delivering the necessary capabilities to drive their success, Wagoner continues. “In other words, most operators will probably not deploy every DOCSIS 3.0 feature found within the specification (which is currently the case for DOCSIS 1.x and 2.0), so why place an arbitrary hurdle in front of vendors of full DOCSIS 3.0 certification when history shows the market will drive the prioritizing of vendor DOCSIS feature development along the way to full certification?” he says.

Laura Hamilton is editor-in-chief at BGR. Email her at laura.hamilton@comcast.net.

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Monitoring Multi-Channel Audio Loudness Issues

By Steve Liu, Mixed Signals

Steve LiuOn Dec. 15, 2009, the U.S. House of Representatives passed H.R. 1084, the Commercial Advertisement Loudness Mitigation (CALM) Act. The bill will require the FCC to prescribe a standard to keep commercials from being broadcast louder than the programs they accompany. The CALM Act also makes specific reference to an ATSC Recommended Practice: “Techniques for Establishing and Maintaining Audio Loudness for Digital Television,” which is applicable to television broadcast stations, cable operators and other multi-channel video providers.

Harmonic

Viewers’ Dislike of Loudness Changes

This legislation is a response to TV viewers’ dislike of large changes in loudness between commercials and the programs they accompany; and of drastic audio level changes from channel to channel. Because there is currently no guidance in the legislation as to what or how the FCC can regulate regarding audio loudness issues, it is absolutely critical that the industry quickly finds a technologically and economically feasible solution before it is left to Congress and the FCC.

Being able to accurately identify when dramatic volume changes in commercials or programs occur is the first step, but since the inception of digital video, cable operators have either not measured audio levels, or they manually measured the audio level of only a single program for a short period of time (e.g., the duration of a certain program) for compliance purposes. Because of this practice, operators used audio measurement devices originally designed for the broadcast industry, in which only a single program need be monitored. The limitation of such audio measurement devices presents significant challenges for the multi-channel environment of cable operators. These include the cost-effectiveness of monitoring hundreds or even thousands of audio channels in real time and the ability to succinctly differentiate audio loudness anomalies from program to program or from commercial to program.

Vecima

Monitoring Challenges

To address these challenges, operators must first choose a monitoring system that will automatically, accurately and most importantly, cost-effectively analyze and report audio loudness in real-time across all programs. The monitoring system also must support user-configurable, real-time alert threshold settings to detect audio loudness anomalies at different times, including those that take place in various channels and programs to interstitial (e.g., commercial) transitions.

The next two illustrations show one way of monitoring hundreds (or thousands) of audio channels in a typical cable video headend — 1RU rack mounting monitoring system analyzing/reporting/alerting audio loudness across all programs/MPTS in real-time.

Figure 2 below shows a screenshot for audio channel loudness measurement for one of the programs being monitored.

In Figure 2, all measuring units are in LKFS Loudness (Loudness K-weighting Full Scale) as specified by the ITU-R BS.1770 specification for audio level monitoring. The dotted line in Figure 2 indicates the “Dialnorm” value in the AC-3 audio stream; the solid line across the screen indicates the mean audio value and the candlestick indicates the peaks and valleys for the audio loudness level during that period of time (e.g., after the previous candlestick and before the next candlestick). Users can utilize the date/time controls (located at the upper left hand corner of the screen) to generate audio level reports at any time, for any duration (e.g., last 24 hours) on all or any of the programs being monitored. Operators can use such a capability (and reporting) to compare audio loudness across all channels and, therefore, identify anomalies among different channels.

Alert Threshold

The alert threshold is another piece of the puzzle. Thresholds designate the alert tolerance with respect to Dialnorm value or audio loudness levels specified by the user. The threshold(s) must be comprehensive and flexible enough to allow for different monitoring purposes in various locations. In a nutshell, there should be three different alert triggering algorithms supported in the monitoring system: alert by absolute audio loudness, alert by the difference between absolute audio loudness and Dialnorm, or alert by comparing the moving average measurement to the prior segment with a user configurable sliding time window, as shown in Figure 3 respectively. If the length of sliding window is significantly reduced, say from hours to less than 10 seconds with the intention to catch “loud commercials,” one must take into account the appreciable quiet fraction of the normal program and adjust the value judiciously.

Three types of audio loudness alerts:

Summary

As operators take content from multiple and various resources, they must constantly monitor the quality of the content, including audio loudness, in order to ensure a high quality of experience (QoE) for subscribers. The intention of the CALM Act is to benefit viewers. However, the end result will benefit everyone in the business ecosystem, from suppliers to consumers, as the end customers’ viewing/listening experience will be improved over time.

As audio (and video) streams are produced, transcoded and re-processed (e.g., spliced), sometimes multiple times in the delivery chain on a large distributed network, the ability to report and tie in these “quality metrics” across systems, regions, and the nation for fast problem discovery, isolation and repair are becoming more important than ever. Having the knowledge and willingness to find the right audio loudness monitoring system and to use it effectively at the right locations in the network will not only give operators the benefit of being “compliant,” but this best (monitoring) practice will provide visibility into operations to ensure they are providing the best QoE at all times to their subscribers. This is the ultimate key business advantage cable operators can have over the competition.

Steve Liu is VP, product management and business development at Mixed Signals.

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Cable Engineering Outlook 2010 – Part 2

By Laura Hamilton

Laura Hamilton Even in relatively easy economic times, it’s incredibly difficult to predict what’s coming next when it comes to the future of cable technology. And while it may be more fun to gaze into the crystal ball during a period of plenty, it’s often a more fascinating process to do the same thing when budgets are tighter.

BGR recently asked a variety of vendors that serve the cable industry what they foresee as the major challenges that the engineering community will need to tackle in 2010. The first installment of this article [CLICK HERE] offered an overview of the big issues that might keep engineers awake in the wee hours of the night throughout next year. In this second part, we delve into some the tools and techniques MSOs might use to take all those challenges on.

  • Imagine Communications CTO Ron Gutman suggests that the impending business transition to a multi-platform, multi-device service offering will create a number of new opportunities and challenges for the cable engineer. Foremost on that list are protecting content distribution rights, reducing the permutations of the physical infrastructure while increasing the overall system flexibility and maintaining a uniformly high quality of experience (QoE) across the different viewing platforms for both stored and live content. To successfully support the new distribution paradigm, operations teams will look to reduce the number of physical permutations, while simultaneously providing a flexible platform for a scalable services architecture.

Harmonic

  • “This can be achieved by hardening the network at Layers 1, 2 and 3 (physical through network) with a common compute and networking platform thereby enabling standards-based innovation for Layers 4 through 7 (transport through application),” Gutman says. “This approach keeps the physical infrastructure under tight control, while providing a framework for the growth and adaptation required by these new services. Maintaining a uniform and high QoE will require a shift in the way cable engineers have typically considered digital quality.”

    Gutman continues that in the legacy paradigm, bit rate served as a crude but not useless tool for monitoring quality. In the new multi-device, multi-network paradigm, video quality is important, but is augmented with on-line expectation for content accessibility and stream continuity, especially as it pertains to live video events. “Further, screen sizes and display types will have profound implications for bit rate, undermining its relevance as a quality-metric. As we move through 2010, engineers will need to expand their service quality definitions to include a broader understanding of QoE, Gutman concludes.

  • Taylor Salman, director of marketing solutions at Ciena calls out cable’s opportunity in the Ethernet service space. “Selection of an efficient Ethernet service delivery infrastructure requires a balance between capital cost reduction while providing advanced service delivery features. CAPEX cost reduction can be accomplished through a pure Layer 2 platform without the additional costs and complexities of Ethernet over SONET or an additional set of Layer 3 protocols,” he says.” At first, delivering Ethernet services via a pure Layer 2 platform may seem at odds with having advanced service delivery features, such as those delivered via IP/MPLS: traffic engineering, more granular QoS control, and protection mechanisms.However, Salman continues, connection-oriented Ethernet provides all of these capabilities on a simpler Layer 2 platform while delivering on the cost reduction promise of Ethernet.

    “Additionally, cable engineers must reduce operational complexity without reducing OAM capabilities used to maintain appropriate SLAs. Reducing operational complexity can be accomplished through systems with automated service provisioning and device configuration with no-touch upgradeability,” Salman explains. “Providing Ethernet services with Layer 2 switches using a common operating system that implements the appropriate OAM standards integrated with an automated management platform can solve this balancing act.”

    Vecima

  • Phil Cardy, product marketing director for Latens, suggests that cable engineers must prove themselves more IP-savvy than ever before. “The differences between IP and cable can be significant, so educating and keeping engineers up to date on IP technology and networking are key to success in 2010 and beyond. It’s in this area that technology partners will play a pivotal role, helping cable operators develop and deliver solutions to meet their unique market needs while addressing everything from software security on simple DTA technology right through to full IPTV service delivery platforms enabling TV everywhere,” he says.
  • When we asked Steve Craddock, CTO of PCT International, what he foresees the technical community tackling in 2010, he was quick to pull out the digital card. “The main challenge the technology guys face is getting through the transition to all-digital. Once they get all of the channels on there, that’s going to put the industry in a place where they can have the greatest competitive advantage over the satellite guys and Verizon, and down the road it will help them to compete on the OPEX side,” he says.
  • Ramin Farassat, RGB VP of product marketing, believes that the best practices for this coming year for the engineering community will involve moving beyond “the safe and easy choices.” Instead, the technical community will need to focus on selecting equipment with strategic and long-term value. “In particular, engineers should favor products that can scale, are programmable and will continue to grow as their needs evolve. Operators should avoid shortcuts and continue future development and research for new technologies, even with fewer resources to work with,” Farassat concludes.
  • In the next year, content monitoring is gong to continue to weigh heavy on the mind of many cable engineers, according to Eric Conley, CEO of Mixed Signals. “Like most things in cable, comprehensive content monitoring is most effective if it starts in the headend,” he says. “Monitoring programs at the ’source’ where they’re pulled off satellite dishes and ingested is key, as is monitoring programs as they’re statmuxed, transrated and otherwise processed prior to distribution from the headend.”Conley believes that once engineers get a handle on source and headend monitoring issues, they have resolved the video and audio impairments that affect the most viewers. “From there, MSOs must roll out monitoring to hubs that tie into the same NOC tools they use for headend monitoring,” he says.
  • The 2010 take of Floyd Wagoner, director, global product marketing and marketing communications, Home & Networks Mobility, Access Networks Solutions, Motorola is as follows: “Cable operators are very efficient and knowledgeable with respect to their outside plant’s performance characteristics and capabilities. Where optimization of the downstream environment has strengthened best practices in DOCSIS 3.0 and channel bonding deployment, the opportunity in 2010 will be to do the same for the upstream.”Characterizing the outside plant to better understand influences that contribute to unmanageable ingress and impulse noise will help operators establish best practices with regards to S-CDMA deployment. By understanding which areas of the RF upstream spectrum are being adversely impacted by ingress and impulse noise, cable operators will be better positioned to activate S-CDMA and achieve optimum upstream throughput in even the worst-of-the-worst of noise induced environments that negatively impact any cable operator’s ability to leverage its existing outside plant investment.”
  • One of the foremost challenges over the next year for cable operators will be enabling personalized, interactive programming options to their customers, John Callahan, CTO of ActiveVideo Networks, believes. Operators will continuously begin to move services to “the cloud” and to integrate existing VOD, navigation, CDN, advertising, and Web services platforms to take advantage of existing CAPEX investment in CPE. “The reclamation of analog bandwidth is allowing more use of digital multicast and unicast approaches to speed new services to market,” Callahan says.
  • John Dahlquist, VP of marketing for Aurora Networks, is adamant when it comes to the topic of extending the cable workforces’ education, and says that operators must continue to commit to personnel training in 2010. He points to SCTE professional development programs, which he says are providing significant resources for the preparation and education of engineering teams and technology professionals looking for the latest information on industry advances.As for new rollouts, Dahlquist says that in 2010, ops will look to the tried-and-true and standards-based arena, particularly as they face the challenge of growing their commercial services business. “For example, with cellular tower backhaul, implementing solutions that have been MEF-certified can provide the needed confidence in the interoperability and deployment of their Carrier Ethernet networks,” he says.

    Laura Hamilton is editor-in-chief at BGR. Email her at laura.hamilton@comcast.net.

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    Diamond Technology Reviews 2009

    Diamond Technology Reviews ‘09

    Engineering Experts Name Top New Solutions – October 29, 2009

    For the Diamond Technology Reviews 2009 program, Broadband Gear Report invited vendors to submit information about products that had been released or upgraded since last year’s SCTE Cable-Tec Expo, which was held in June 2008. We assigned each entry to at least three of our six volunteer judges who are listed below. To help ensure fairness, similar products from different vendors were reviewed by the same group of panelists. Judges based scores/comments on written material provided by vendors, as well as their own experience with or knowledge of the specific technologies.

    BGR’s staff played no role in the judging of the submitted products. Review panelists were informed that scores/comments would remain anonymous.

    By Laura Hamilton

    SCTE is celebrating its 40th year and Expo 2009 is taking place in Denver – one of cable’s traditional, old-school hubs – so it’s easy to guess that there are going to be a lot of great stories of Expos-gone-by being tossed around this week. But, ultimately, Expo is not about the past, but the future of cable technology. It’s long been one of the best places to check out the real technology that’s propelling us forward. And that’s why BGR’s Diamond Technology Reviews program has always revolved around Cable-Tec Expo. Now in its fifth year, “the Diamonds” are a great way to get a snapshot of what some top engineering executives think about some of the best engineering solutions available to the industry today.

    Diamonds Judges ‘09

    • Tom Gorman, VP of Field Operations, Charter
    • Nick Hamilton-Piercy, Independent Consultant (Retired Senior Technology Advisor, Rogers)
    • Roger Hughes, Senior Engineer, Operations, Cable Operations Center, Armstrong
    • Andy Parrott, Corporate VP of Technical Operations, Suddenlink
    • Tim Templeton, Manager of Network Design and Documentation, Sunflower Broadband
    • Ken Williams, Director of Engineering Technology, Cox

    The judges listed in the sidebar above used the following scale to determine Diamonds scores:

    • 0-1 Useful product, yet commodity
    • 2-3 Solid product with viable attributes that set it apart
    • 4 Excellent product with technical features and performance that provide clear and substantial benefits
    • 5 Superb product that sets new standard for performance and provides groundbreaking and new technical milestones

    We averaged each product’s scores and rounded that to the nearest full or half Diamond. Note that products are grouped by score (with the highest Diamond ranking first), and then in alphabetical order.

    Scores of 4 or above are considered superlative and reflect a very positive opinion from the panel. Only products receiving 4 Diamonds or above are included in this article.

    Alloptic Managed MicroNode RFoG ONU: 5 Diamonds

    The Managed MicroNode RFoG ONU extends Alloptic’s RFoG ONU product range by adding a group of RFoG ONUs with remote management capabilities. It allows the extension of fiber deeper into the network – to the subscriber’s location from a headend or hub – while continuing to use the embedded HFC/DOCSIS infrastructure. At the subscriber’s premises, a MicroNode RFoG ONU connects the fiber to the existing in-building wiring, using the same cable modems, set-top boxes and other CPE. At the headend, existing infrastructure is leveraged as well. The same QAM modulators, laser transmitters, CMTS and EDFAs continue to be used along with current operating and billing systems.

    “When you take a great product and continue to add features a step ahead of operators’ needs, you have something worth bragging about,” a Diamonds judge said. “A standalone RFoG MicroNode that also is remote-managed is a solution for many applications in the near future for MSOs.”

    Even though the RFoG ONU is the critical “optical enabler” in an RFoG architecture, it has, however, traditionally been a “dumb” device. In other words, connect it, add power and enjoy the benefits of fiber distribution without the ability to communicate with it remotely. Alloptic says that with its Managed MicroNode RFoG ONU, operators have the ability to remotely monitor the ONU as well as be able to remotely inhibit or re-enable signal transport – remote RFoG service control. With this control, service connects, disconnects, and reconnects are achieved without a service dispatch or truck roll, and theft-of-service losses can be decreased. That remote monitoring also supports the growing desire to manage and monitor every element in the network.

    Aurora Networks NC2000 Optical Platform: 5 Diamonds

    “Aurora is famous among MSOs for never once raising their prices and they continue to look out for us during these hard times by providing all the performance of their NC4000 in a 2×2 version to operators to save money in applications where a reduced number of output are not required,” a Diamonds panelist stressed.
    Aurora Networks’ NC2000 is a 2×2 segmentable, wall or cabinet mounting node platform designed specifically for MDUs and underground applications. It delivers the combination of the 2×2 segmentation with up to 58 dBmV of RF output level at 1 GHz for deployment in both traditional HFC (node plus RF amplifiers) and fiber deep architectures. The NC2000 expands current bandwidth and lowers operational expenses by reducing the actives in the network, cutting power and maintenance costs.

    The NC2000 builds on Aurora’s NC4000 platform and incorporates the company’s digital return and virtual hub (Vhub) technologies, which is said to enable operators to “double targeted bandwidth capacities” for subscriber services such as VOD, high-speed data and HDTV, without the need for additional nodes or other hardware upgrades in existing HFC, fiber deep and RFoG deployments, while simultaneously providing an optimal migration path to future network architectures with support for next-generation access modules, Node PON, BitCoax and Fiber on Demand.

    “This very smartly designed node saves costs to operators, can be monitored and is very flexible,” another judge noted. “This is an architecture element that can be leveraged for many years to come, allowing migration to newer optical designs.”

    Ciena CN 5305 Service Aggregation Switch: 5 Diamonds

    Robust was the word used by more than one judge to describe this solution. This switch solves a problem “all operators contend with – mixing and managing multiple encapsulation formats and handling them off successfully to the access network,” one panelist concluded. Another said: “With the growing business in wireless backhaul, the 5305 offers a simple out-of-the-box automated device configuration and service provisioning preferred by anyone tasked with a quick turn-up.”

    The Ciena CN 5305 is a modular service aggregation switch optimized for metro edge applications, enabling both high-density GigE connectivity to the subscriber edge and high-performance 10GbE uplinks to the service provider core. The CN 5305 is based on Ciena’s True Carrier Ethernet technology. The company reports that it combines Ethernet technology with the reliability, management and service quality usually associated with SONET/SDH networking systems. The CN 5305 software architecture is based on a common service-aware operating system used in all Ciena service delivery switches (SDS) and service aggregation switches (SAS) to provide consistent system and service attributes and operational efficiency. Ciena says that the CN 5305 features QoS capabilities, superior virtual LAN (VLAN) and virtual switching functions and robust management and performance monitoring features. These functions are required to support carrier- grade Layer 2 virtual private networks (L2 VPNs), mission-critical data, high-speed Internet, and high-quality IPTV VoIP services.

    Cisco RF Gateway 10: 5 Diamonds

    “Can someone say please supersize my universal edge QAM?” one of BGR’s panelists quipped. “480 QAMs on a single chassis (13 RUs) – that’s impressive.”

    Cisco says that its RF Gateway 10 universal edge quadrature amplitude modulation (U-EQAM) device provides the scalability and high availability features required to support escalating QAM channel capacity needs. The technology features up to 480 QAM channels per chassis with the DS48 QAM line card, and the ability to substantially grow with future QAM cards. “The Cisco RF Gateway 10’s compact design and dense QAM capabilities solve many edge convergence issues that operators are facing,” another judge said.

    Further key features of the device include redundancy of all system components with RF Gateway 10 DS-48 universal edge QAM line card subsecond failover, and 100% link redundancy with 10 GigE and GigE interfaces. It offers universal edge QAM functionality to support all digital video and DOCSIS services concurrently on a single platform, as well as a non-service affecting roadmap of incremental upgrades, including scalability to 200+Gbps aggregate bandwidth per chassis. Its dimensions are 13 rack units (RUs) high with up to three chassis per 7-foot rack (39 RUs).

    Cisco lists its applications as broadcast video, SDV, VOD, standard- and high-definition digital video and DOCSIS 3.0 and M-CMTS.

    Harmonic MediaPrism Convergence Suite and ProStream 4000 Multi-Screen Transcoder: 5 Diamonds

    BGR’s panelists found this to be very useful equipment for MSOs moving to “three-screen” TV-anywhere mode of service delivery. They liked its compact design and saw the technology as timely as the industry moves to capture new revenue streams from both fixed and mobile infrastructures.

    Harmonic’s mobile solution is a content preparation and transcoding platform for mobile video delivery to various networks and devices (broadcast, 3G/4G, Internet and sync-and-go). It incorporates Harmonic products including ProStream 4000 multi-screen transcoder, Rhozet Carbon Coder and LIVEcut technologies to enable operators to provision live, time-shifted and on-demand content on a mobile device. Leveraging existing headend equipment, Harmonic says its Converged Video Delivery Platform helps operators deliver the performance required for successful mobile and Internet TV video services.

    One judge summed up the solution this way: “[It] is a large piece of the puzzle for solving the integration issues of voice, video and data to multiple devices, making services truly mobile.”

    Part of the platform, the ProStream 4000 multiscreen transcoder offers a solution for real-time transcoding of MPEG-2 and MPEG-4 AVC content for applications such as Internet TV and 3G/4G mobile TV. Harmonic says it is capable of transcoding up to 16 channels simultaneously while maintaining excellent video quality. An all-IP architecture enables seamless, low-cost integration into existing headends, the company also points out, while flexible software allows for future codec upgrades. Other benefits include comprehensive device configuration, N+M redundancy, alarm forwarding and APIs for system integration.

    Vecima Terrace MDU Gateway: 5 Diamonds

    The Vecima Networks Terrace MDU gateway is a multichannel QAM to analog RF converter. Demodulated MPEG-2 transport streams from multiple QAMs are decrypted, decoded to analog, then converted to the correct RF channel. The Terrace can demodulate up to 16 QAM carriers, select the MPEG-2 transport streams and remap them to 82 standard definition MPEG-2 program streams, which are NTSC modulated to analog video channels. Vecima says that the Terrace is a flexible, compact and cost-effective way to bring a digital lineup back into the analog realm for an MDU bulk account. In the context of large MDUs, it allows MSOs to maintain cable services to customers that do not subscribe to digital services. Terrace eliminates the need to deploy DTAs and set-tops to convert digital signal into analog format. Traditionally, this type of conversion was done either at the headend or at the customer premise. Terrace does this conversion at the curb.

    Judges pointed out that it’s a bit late to talk about this for the urgent transition to the all-digital market, but were very quick to add that this is a extremely valuable solution for the near term when it comes to the potentials that surround multiple dwelling units, hotels, etc.

    Perhaps one panelist summed up the judges’ conclusions best by saying that application for MDU and hospitality service delivery makes a lot of sense because it avoids huge investments and operational complexities of providing digital terminal adapters for every suite/TV set throughout the MDU, condominium complex, campus, hotel or hospital.

    Another interesting feature of the unit is that is offers the option to do ad insertion at the MDU. This obviously adds potential source of revenue in terms of camera surveillance, paid advertising, community channels, etc.

    ARRIS MDX 9200: 4.5 Diamonds

    The ARRIS Media Distribution Switch (MDX) 9200 is purpose-built for multiple-screen converged media services. The company says it offers low operating costs by leveraging non-volatile, high-density solid-state storage to eliminate servicing hard disk drive failures and reducing power demands with fewer moving parts. ARRIS also reports that it has the highest storage density and bandwidth capable from flash storage.

    Unique features of the MDX 9200 include full line rate regardless of protocol, encapsulation or codec. According to ARRIS, all other streaming platform vendors deliver line rates only for MPEG-2 delivery to legacy set-tops, but introduce significant degradation of performance to more contemporary clients/players, i.e., 5x-10x degradation. For example, a legacy MPEG-2 video pump, capable of 10 Gbps of throughput only can deliver 2 Gbps for Adobe Flash or Silverlight.

    Another distinction is that the MDX introduces a new flash storage subsystem that optimizes the capability of solid-state flash storage densities with DRAM performance.

    The judges that reviewed this product generally made the same observation: The solid-state storage is the real differentiator here.

    JDSU MicroStealth QAM: 4.5 Diamonds

    The Diamond Technology Reviews judges liked the “grass roots” and “keep it simple” focus of this product.

    “It has great potential for reducing operational costs and getting it right the first time to minimize additional truck rolls,” one panelist said. Another stressed that it was “easy to use and understand but also powerful.”

    The JDSU MicroStealth QAM (MSQ-800) provides field techs with a single tool to help ensure the quality of digital cable services in minutes. JDSU says that the simplified icon-based user interface reduces training time from weeks to hours. All tests can be reached within one button press from the main menu. An automated test feature lets users execute a set of user-defined tests with pass/fail indication, which ensures consistent performance of tests at each installation without wasting time.

    Although the MSQ-800 is simple and compact, it reportedly provides all the necessary tests to verify digital and analog cable services. The digital measurements include digiCheck digital signal level, modulation error ratio (MER), pre- and post-FEC (forward error correction) bit error ratio (BER).

    The MSQ-800 also offers analog channel video level, analog channel audio level, carrier-to-noise ratio (C/N), scan and tilt. Additionally, the MSQ-800 addresses the difficultly associated with configuring an instrument to perform digital measurements such as MER and BER. The new AutoPlan automatically detects channel type (analog or digital), QAM type (64 or 256), symbol rate, and spectral inversion. Users must only select the correct frequency plan and the MSQ automatically builds a channel plan based on the signals it discovers.

    Motorola SURFboard Modular EMTA Platform: 4.5 Diamonds

    Motorola’s SURFboard M-EMTA platform can be applied to both multi-tenant businesses and multi-dwelling residential installations (strip malls, apartments, hotels, etc.) to extend broadband coverage to subscribers. It also provides a multi-line high-speed data and IP voice solution. Subscribers will like the fact that the platform enables one bill for voice and data, simultaneous use of both the phone line and the computer, and support for services like caller ID, call waiting and call forwarding. Also, since the M-EMTA can be located outdoors or in a utility closet, customers no longer need to be available for the cable operator to install services or make repairs.

    “The Motorola SURFboard modular EMTA platform offering up to 48 lines and the optional hardened housing for external installation with 60 to 90 VAC HFC powering makes this an easy answer to many challenging MDU applications MSOs are faced with,” a panelist concluded.

    The platform uses industry standard signaling protocols to provide high-speed Internet access and up to 48 lines of full-featured primary line digital voice telephony service over a cable broadband connection to the multiple dwelling unit or multiple-tenant environment markets. The chassis is a fully modular, supporting a variety of EMTA module configurations to multiple subscribers, from two to four lines per module. All modules are reportedly easily installed and provisioned and are hot-swappable, should changes or upgrades be necessary.

    Phoenix Broadband Power Agent Monitoring System: 4.5 Diamonds

    This solution is “much needed as operators seek ways to efficiently maintain backup plant and monitoring” one of our judges commented.

    Phoenix Broadband Technologies’ Power Agent system not only automates battery maintenance, but also provides a means of determining battery health that the company says is not available with legacy manual maintenance techniques. According to the company, that’s because manual techniques are inherently compromised because they provide only a brief snapshot in time, are done two to four times per year and individual measurements can vary by 15% or more per measurement (depending on the tech, type of meter, placement of the meter’s probes on the cell/jar and force applied). Phoenix says that by making consistent, accurate and continuous measurements, the PowerAgent system does what manual maintenance promises, but didn’t deliver.

    The system is made up of a series of BatteryAgent sensor modules that are electrically and mechanically affixed to the terminal posts of the batteries being monitored, and a PowerAgent Site Controller unit that collects readings from the individual sensors and makes the information available for management purposes via an Ethernet local area network. BatteryAgent sensor modules are designed for use with 2 or 12 volt batteries in DC power plants and UPS power systems up to 600 volts DC and with several choices of mounting brackets for different post configurations.

    RGB Broadcast Network Processor (BNP): 4.5 Diamonds

    “A whole lotta horsepower in 1 RU!” a Diamonds panelist noted. Another pointed out: “RGB has put a lot of thought into this processor, from supporting MPEG-2 and H.264 to ensuring integrations with SCTE-18.”

    RGB Networks’ BNP is currently in use by cable operators to deliver more HD programming, groom custom channel lineups and to generate new ad revenues through the insertion of local ads. The product’s newest upgrades enable it to support several advanced capabilities that have become increasingly important to its growing worldwide customer base – supporting both cost-efficiency and revenue generation. Able to simultaneously process more than 500 video streams in its one rack-unit platform, the BNP is the reportedly the highest density solution for digital video grooming, statistical multiplexing, transrating, digital program insertion (DPI) and digital overlays. “The unprecedented stream processing density of the BNP significantly lowers the cost of delivering advanced digital video services, simplifies operation and management, and reduces operational and capital costs – while creating new sources of revenue through features such as digital ad overlays,” according to RGB.

    An upgrade of note to the BNP is the support for the MPEG-4/H.264 video format, which is increasingly important in many markets, particularly internationally. The BNP enables operators to take advantage of the bandwidth efficiencies of MPEG-4/H.264 to roll out their HDTV services, while continuing to use their traditional MPEG-2 infrastructures for their SD programming. This approach is said to dramatically reduce operators’ cost to expand their HD offerings in a format that consumes far less bandwidth than MPEG-2. The result is a reduction in operational expenses and a direct increase in revenue, as operators can deliver more HD services without having to increase bandwidth via costly infrastructure upgrades.

    Sunrise Telecom realGATE Broadband Test Management System: 4.5 Diamonds

    BGR’s judges stressed that MSOs are striving to ensure that every install is perfect and that subscribers only call back to pay compliments or order more services. “The realGATE solution is a perfect way to achieve those results,” a judge commented. “The practice of uploading the results of each install or service call while standing at the job site is the best way to allow the details around the quality of network from the source to the CPE to get reviewed daily.”

    The Sunrise Telecom realGATE field gateway management tool is a Web-based comprehensive management system for devices, test results and work orders. It centralizes essential information while streamlining and improving broadband testing. Sunrise Telecom says that problems are isolated faster, truck rolls are reduced and time and money are saved.

    RealGATE runs on a server appliance that communicates with test equipment in the field, while also allowing internal personnel access to the database via a private network. This open and scalable management platform allows the solution to manage assets, configurations and firmware, correlate work orders and test results and create home certification reports.

    The product provides central control of system files (channel plans), test plans and test results to standardize testing, and allows “right the first time” benchmarks to be implemented. Historical results can be generated on the fly. Sunrise Telecom says it reduces capital equipment costs by tracking test equipment to ensure assets are fully utilized and calibrated.

    Alloptic DPC DOCSIS PON Controller Software: 4 Diamonds

    Alloptic’s DPC DOCSIS PON controller software enables DOCSIS provisioning and control of the Alloptic EPON and Hybrid RF PON systems. DPC facilitates the acceleration of PON rollouts by MSOs using DOCSIS for service delivery. With DPC, Alloptic says that operators realize the benefits of PON, while continuing to use DOCSIS flow-through provisioning and control. DPC acts as a proxy between back-office systems and Alloptic GEPON system. In effect, the PON OLT appears to be a CMTS where the PON ONT takes the place of the cable modem, resulting in PON performance from a DOCSIS-controlled network.

    One Diamonds judge summed it up as follows: “A timely product for those making a slow migration to PON in greenfield applications or in response to fiber competitive pressures. End points ‘look like’ DOCSIS end points so minimum disruption to existing back-office provisioning/control systems, which is essential in a busy and cash-restrained operating environment. Good solution.”

    Alloptic reports that one way that operators can save money using the solution is by removing the costs related to errors in manual provisioning and activation. Another way is to avoid spending sums in customizing their systems to support automated activation of PON deployments. Training costs are reduced as well, due to the ability for providers to “do what they do today” and still be deploying and gaining the benefits from next-generation EPON solutions. DPC works in concert with other Alloptic products including its Managed MicroNode RFoG ONUs, GEPON OLTs and ONTs and the GEMS management system to allow increased operational efficiencies, bandwidth gains and the ability to offer advanced services to residential and business customers without requiring major overhauls or replacement of OSS components.

    Alloptic Return Path Receiver: 4 Diamonds

    “Operators will find this product useful for FTTH projects especially those utilizing remote OLTs,” one of our panelists concluded.

    The emergence of RFoG technology is stretching the limits of typical return path receivers found in HFC networks. Receive levels are as low as -20 dBm because of the optical loss of splitters in the return path. At this input level, the noise performance of many receivers is not adequate to support high-order modulation formats like 64-QAM. This is especially the case for networks deploying DOCSIS 3.0 with channel bonding.

    Further exacerbating the problem, in practical deployments multiple receivers are combined, causing the carrier-to-noise ratio performance to drop even more. One solution would be to improve performance by using a higher power laser in the R-ONU, but this is impractical due to the cost impact. Alloptic says that the most economically viable solution then is to improve the performance of the return path receiver.

    Alloptic addresses this problem with a line of new low-noise return path receivers that offer “significant noise improvement over commonly available receivers.” These receivers are an integral part of two-way RF access networks, converting return path optical signals into RF signals at the headend or remote hubs. Four independent receivers are packaged in a 1RU rack-mountable enclosure, serving 256 RFoG optical network units (ONUs) such as the Alloptic MicroNode RFoG ONUs. The Alloptic low-noise receiver design improves noise performance by as much as 5 dB over typical return receivers, according to the company.

    ARRIS ConvergeMedia Management Suite: 4 Diamonds

    The ARRIS ConvergeMedia Management Suite features the VOD Dashboard, part of the ConvergeMedia Management Suite for On Demand, and allows operators to configure system views of on-demand usage to suit their specific needs and enable them to identify service-impacting issues. The product’s management tools allow high-level viewing of on-demand services with the capability to run analysis and drill down to detailed information about specific issues. It features Lights Out operations that do not require operator intervention for on-demand content management. Active Failover options allow backup server(s) to take over operations in case of catastrophic failure and continue on-demand service without interruption.

    “An operator must live by the motto ‘always on’ and the Active Failover option provides the reliability needed to fulfill our motto,” a judge noted.

    The suite also is said to enable new revenue streams by supporting the Unified Video Delivery Platform. Additionally, advanced VOD advertising is allowed using the already existing VOD platforms.

    Another Diamonds panelist concluded, “The ConvergeMedia Suite takes steps forward in many areas, including reliability, advanced advertising and recommendation techniques.”

    BelAir 100S Release 9.0: 4 Diamonds

    “This continued enhancement of a useful product will let operators increase revenue options and reduce installation and operations costs,” a panelist said. Another put it in even a more simple way: “Excellent concept and implementation.”

    BelAir Networks says its 100S strand-mounded WiFi node helps reduce OPEX by leveraging cable operators’ existing network infrastructure for mounting, power and backhaul – removing all traditional barriers to effective large scale WiFi deployments, while reducing the cost and time associated with network installation. A BelAir100S can be installed on cable strand in less than 15 minutes, according to the company. The 100S features many different strand-mounting options including aerial strand, in pedestals, vaults and cabinets.

    The unit is managed by BelView 4 NMS, a network management system that leverages GIS-based mapping and GPS information to facilitate the setup and management of WiFi networks of all sizes, supporting up to 20,000 wireless APs in a single network. The BelAir100S also is said to seamlessly integrate with the cable op’s back office infrastructure to facilitate service provisioning. Additionally, it enables operators to leverage license-free spectrum to address quad-play opportunities. No investment in licensed bandwidth is required.

    On the new revenue source side, BelAir points out that its 100S enables cable operators to capitalize on the popularity and ubiquity of WiFi-enabled mobile devices and applications to attract and retain broadband customers, win new enterprise business in high-value verticals and to offer cellular operators a way to offload 3G data traffic.

    Cisco Explorer 8642HDC Next-Generation Hybrid DVR and Media Server: 4 Diamonds

    The H8642HDC features Cisco’s sixth generation system-on-chip (SoC) design, offering what the company reports as 300% more processing power than previous generations. The standard 320 GB hard disk drive doubles the DVR storage of previous HD/PVR models to record more programs. The 8642HDC is a hybrid IPTV/QAM design that supports the sending or receiving of streaming media via IP. It also contains dual tuners for receipt of QAM modulated video enabling dual recording of network-broadcasted content. The solution supports M-Card conditional access security. The Cisco video architecture is flexible in supporting content and providing digital rights management where video is delivered over IPTV or QAM methods.

    The technology is video-over-DOCSIS capable. It also offers increased consumer choice for cross-platform content sharing with a new USB 2.0 port for connectivity to consumer electronics such as digital video cameras and memory sticks. The Explorer 8642HDC also supports digital transmission content protection over IP (DTCP-IP) and Digital Living Network Alliance (DLNA) IP-based standards for whole-home DVR and video content sharing.

    The solution is future-proof for growing interactive services, a panelist said, and the whole-home experience enables new revenue streams.

    EXFO ROADM/POTS and 40G Testing Combo: 4 Diamonds

    Judges agreed that the modular aspect of this product was key to its solid score. “Operators can add elements as necessary … EXFO has built a great enabler for MSOs to optimize their optical transport networks,” one of BGR’s panelists stressed.

    Building on EXFO’s modular design, the company’s new portable solution combines the FTB-5240S-P optical spectral analyzer (OSA) and the FTB-8140 Transport Blazer modules in the FTB-500 platform to offer operators an integrated approach to 40G optical spectral characterization and transport testing. EXFO says its integrated 40G optical spectral characterization and transport solution is the “first and only” testing solution on the market supporting in-band OSNR and 40G/43G testing capabilities all in one box.

    The FTB-8140 (40G/43G) module can be complemented with either a standard OSA or an in-band OSA for network commissioning or with the FTB-8130NGE for service turn-up, including Dsn/PDH, SONET/SDH, Ethernet and fiber channel services. EXFO points out that its 40G integrated solution is a “true field-upgradeable solution.” With software options, customers can enable testing capabilities including 43G, intrusive through-mode, Ethernet and FC in the field through software keys. No hardware upgrade is required. Also, with the growing demand for deploying ROADMs for bandwidth scalability and operational efficiency in 40G networks, EXFO’s integrated solution covers all ROADM commissioning configurations including lower-rate SONET/SDH services mapped within 40G pipes down to STS-1/AU-4 granularity.

    Fujitsu FLASHWAVE CDS: 4 Diamonds

    “The Fujitsu FLASHWAVE CDS is a considerable solution for MSOs challenged with the ever-growing needs to add business Ethernet across a legacy network,” one of our judges stated.

    Fujitsu’s FLASHWAVE CDS packet optical networking platform delivers high-density connection-oriented Ethernet, SONET and TDM circuit emulation services in a modular platform. It is designed to address a range of aggregation and transport applications including mobile and cable modem backhaul services, business access and Ethernet services. The system supports private-line quality Ethernet transport for business services as well as existing SONET-based services. Fujitsu says the new platform is ideal for use as enterprise CPE and in multi-tenant/multi-floor office buildings and outside plant cabinets.

    The company also reports that the FLASHWAVE CDS eases migration for TDM to Ethernet transport for next-generation WiMAX and 4G LTE base stations. “These systems require high-bandwidth, native Ethernet transport services – the perfect application for the FLASHWAVE CDS optical edge platform,” Fujitsu says.

    Fujitsu points out key technical advantages as the two-slot modular design, high-density Ethernet interfaces, connection-oriented Ethernet transport, advanced traffic prioritization and traffic management and robust Ethernet link and service OAM.

    Harmonic ProView 7000 Integrated Receiver and Stream Processor: 4 Diamonds

    Harmonic reports that its ProView 7000 integrated receiver and stream processing platform is “the world’s first solution to combine a scalable video receiver, DVB descrambler, multi-format decoder and MPEG stream processor in a single rack unit.” By integrating transport stream descrambling, remultiplexing and the ability to decode all formats and standards, the ProView 7000 streamlines system architecture – and thus helps operators implement a scalable infrastructure that simplifies their operations and cuts capital and operating costs. Harmonic says that the ProView 7000’s density and flexibility make it invaluable for an expanding channel lineup. By integrating DVB-S/S2 demodulation and streaming descrambled content over IP, the system enables operators to quickly and cost-effectively launch new services leveraging their existing IP or legacy ASI infrastructure.

    The Harmonic ProView 7000 features broadcast quality SD and HD, MPEG-2 and AVC video decoders, engineered for distribution and contribution applications. The flexible hardware design can be reconfigured by a firmware upgrade, enabling seamless adaptation to new inbound video formats and codecs such as the transition from SD MPEG-2 to HD AVC.

    BGR’s panelists gave this high marks for its unique features and flexibility. “Who wouldn’t want more out of their receivers?” a judge commented. “The Harmonic ProView 7000 delivers much more by adding a DVB descrambler, multiformat decoder and MPEG stream processor all in a 1RU scalable video receiver.”

    JDSU MVP-200 Video Probe: 4 Diamonds

    One judge cheered the JDSU MVP-200 video probe for its ability to provide an improved solution for MSOs to reduce the mean time to repair by providing real-time monitoring and simultaneously completing deep packet inspections on select streams. “The full-time, 100% monitoring of all digital video is a real plus and differentiator,” another panelist noted.

    JDSU reports that with the new release of SimulTrack II for Ethernet, the MVP-200 now has the ability to function as both an MPEG digital video monitoring probe while simultaneously supporting the ability to do deep packet inspection on a selected MPEG Transport Streams or single program. The company says that users no longer need to choose between purchasing a monitoring probe (to provide ongoing real-time monitoring) and an analyzer to provide the detailed level of analysis engineers often need to identify difficult problems. With the MVP-200, both capabilities are provided in a single distributed package, JDSU says.

    The monitoring capabilities can be integrated into existing systems through the use on an XML-based API. SNMP traps and email notification are available as well. The analysis functions provide detailed table and metadata analysis with the ability to analyze issues like video/audio timing drift often related to lipsync issues. The SCTE-35 DPI support allows the identification of splice points.

    JDSU T-BERD 6000A Multi-Service Application Module: 4 Diamonds

    One panelist put it simply by saying he was impressed by this small, yet powerful, piece of test gear that he believed had a great user interface.

    JDSU claims that its handheld T-BERD 6000A multi-services application module (MSAM) “provides the industry’s most compact and powerful multifunction, multilayer 10 Gigabit tester for installing and maintaining Carrier-grade Ethernet and IP services.” Technicians can add testing capability with pluggable physical interface modules (PIMs), small form-factor pluggable modules (SFPs), and 10 Gb/s small form-factor modules (XFPs) to create a variety of field-configurable optical/electrical test combinations.

    “The business needs to install and maintain a reliable Ethernet and installers and technicians need the best tools to ensure the best QoS. The JDSU T-BERD 6000A module provides the confidence every tech wants in a handheld unit to supply the best troubleshooting or just knowing the QoS is perfect,” a Diamond judge said.

    Transport and Special Services technicians using this modular handheld field tester can turn up and maintain Metro Core networks. Interfaces on the unit range from 1.5 Mb/s to 11.1 Gb/s on various synchronous and asynchronous technologies, including Ethernet, SONET/SDH, OTN and Fiber Channel (FC). It can also verify and troubleshoot higher-layer IP video, Layer 4 (L4) User Datagram Protocol/Transmission Control Protocol (UDP/TCP), File Transfer Protocol (FTP), and Hypertext Transfer Protocol (HTTP).

    Mixed Signals Sentry 4.0: 4 Diamonds

    “I love this product,” a Diamonds judge said. “A definite must-have for evaluating the ‘final’ video quality factor received by the customer. Going farther than a simple evaluation of bits in error or transmission errors, this product attempts to evaluate final video quality as perceived by the customer, which is the ultimate standard to meet. If our industry fails to do this, our customers will tell us by switching to competing services or compelling the FCC to mandate digital video quality factors.”

    In addition to Mixed Signals Sentry’s ability to detect frozen video, loss of audio or black screens, the new upgrade helps operators capture additional subscriber-impacting issues like macroblocking and tiling as well as audio level issues while evaluating the real impact of all issues on the subscriber’s viewing and listening experience. Mixed Signals also says that the new upgrade helps operators ensure that their subscribers are getting the best QoE with the new Audio and Video QoE Scoring System, which indicates the satisfaction level of the viewer by ’scoring’ video and audio impairments. The scores are based on a decode analysis of each program in real time, which allows the system to determine how errors manifest on the viewers’ TV screens or through their audio speakers. Should events such as freezing, tiling/macro-blocking, audio disruptions, etc., affect the quality of the viewers’ TV experience, the score is reduced.

    The magnitude and duration of the score reduction is based on an analysis that includes the positioning of the error on the viewer’s screen, the duration of any reduction in quality and the frequency that quality issues occur on a program. The system models these results based on an average TV viewer’s reaction and incorporates them into a continuously graphed Audio/Video QoE score chart. Also, the advanced reporting package in the Sentry 4.0 upgrade helps ops ascertain the critical problem areas or locations of their networks. These reports are customizable and can be automatically generated in a PDF and/or CSV (with the alert data) file format and emailed to designated people on hourly, daily, weekly or monthly intervals.

    R.L. Drake Digital Freedom System: 4 Diamonds

    A Diamonds judge summed up this solution by saying it’s a excellent way to start the move to MPEG-4.

    Drake claims that its Digital Freedom system is the lowest cost, full end-to-end MPEG-4 digital and HD video delivery platform available today. The system’s architecture is designed to overlay existing hardware to minimize downtime upon installation and maximize the current hardware investment, the company says. According to Drake, it “provides a fully scalable and reliable migration path from analog to digital distribution, allowing broadband cable engineers to recover and manage broadband spectrum far more efficiently without the necessity of major new capital expenditures.”

    The Drake Digital Freedom System is specifically aimed at helping cable operators migrate more efficiently to digital and HD. The system’s scalability allows operators to deploy only what they need now and later grow to meet increasing demand, access new products and offer additional services. Operational expenses are also reduced since all Drake Digital Freedom headend systems are designed for simple deployment and offer a small equipment footprint.

    Another Diamonds judge pointed out that smaller cable operators that are still in the midst of deploying digital services may perhaps benefit most from this product. He also sees it as a good solution for providing service to the hotel/motel market.

    Sunrise Telecom STT 40G: 4 Diamonds

    Sunrise Telecom’s STT 40G is a 40G/43G test system that verifies the performance of new, high-bandwidth synchronous digital hierarchy (SDH), optical transport networks (OTN) and SONET networks. As super high-bandwidth links like OTU3, STM-256 or OC-768 carry more user traffic, a single failure could have a catastrophic impact on a large subscriber base. Operators need testing procedures and tools to provision these mission-critical circuits. Sunrise Telecom says that unlike other 40G testers, its STT 40G has been designed with an intense focus on extreme user-friendliness while at the same time being able to perform comprehensive 40G/43G link performance and reliability testing. The STT 40G reportedly assures that these 40/43 G links are brought into service error-free and with guaranteed performance.

    “More and more operators are placing lifeline services, digital video transport and other key services across their network backbones and providing aggressive service level agreements to carriers,” one of our judges said. “The Sunrise Telecom STT 40G test system is a necessary tool to support your super high-bandwidth links.”

    Another judge was most impressed by the product’s flexibility. “Allowing test engineers to use only necessary modules effectively spreads the functionality of a single unit to multiple sites,” he said.

    Sunrise Telecom SunLite GigE Tester: 4 Diamonds

    “[It's] a must-have device for any MSO growing its Ethernet business services. This is a light and easy-to-use test meter for any tech challenged with ensuring best QoS and exceeding SLAs,” a BGR judge stated.

    The Sunrise Telecom SunLite GigE is a rugged, compact and palm-sized unit for the installation and maintenance of Metro Ethernet and IP services. It verifies end-to end transport of 10/100/1000 and Gigabit Ethernet/IP traffic, performs BER tests, determines throughput, link utilization, round trip delay and IP connectivity. The GUI, along with the straightforward creation and sharing of test profiles, is said to allow techs with limited Ethernet or IP testing experience to verify performance parameters for GigE services.

    Another Diamonds judge concluded that it is “a great test set in a small form factor. This unit is great for turn-up and troubleshooting.”

    Sunrise Telecom says the unit is the smallest, most lightweight Ethernet tester capable of full wire rate BERT testing as well as RFC 25444 over both 10/100/1000 Base T copper (UTP) as well as SFP GigE and 100FX (fiber). The company also reports that the fanless operation not only makes for testing in silence, but also makes for increased reliability. The 6+ hour battery life helps eliminate recharging between jobs, and the bright color LCD is said to be easy to read in any light.

    TANDBERG Television Xport Time-Shifted TV Solution: 4 Diamonds

    TANDBERG Television’s Xport Time-Shifted TV (TSTV) solution is said to offer operators a way to dramatically expand the number of broadcast channels they can offer as part of a delayed viewing experience (including restart functionality where subs can watch the recorded program while the linear version is still on-air). The Xport TSTV was designed to manage multiple content receive/record sites simultaneously with a single interface. The solution combines scalability, centralized management of recording rights, broadcast capture with “live TV” redundancy and an open architecture.

    Targeted advertising is still a largely untapped revenue opportunity. But through the use of SCTE messaging and edge caching technology, MSOs can resell and reuse local advertising avails in new ways. Using the Xport TSTV solution to perform dynamic ad swapping into a time-shifted stream protects the legal obligations to advertisers and provides a new source of ad revenue.

    “These are new advancements that I love to see each year,” one panelist said. “I love the restart and then when you add in the ability to dynamically provide unique advertising to restarted end-users, the TANDBERG Xport time-shifted TV solution is the way to go.”

    TSTV manages multiple sites simultaneously with a single interface, reducing the need for personnel at each remote location, as well as narrowing the opportunity for error by having one source handle all management of time-shifted programming. The solution also is built on open interfaces, which allows ops to use video servers from multiple vendors.

    Vecima Terrace QAM: 4 Diamonds

    The Diamonds judges that reviewed this product gave it high marks for its ability to open up new markets for cable operators. The Vecima Networks Terrace QAM hospitality gateway is a multichannel QAM to QAM transcryptor for use in the hospitality industry. Demodulated MPEG transport streams are decrypted by CableCARDs then re-encrypted using Pro:Idiom technology. The encrypted MPEG transport streams are re-modulated and then delivered to the desired RF channel. The Terrace QAM can demodulate up to 64 QAM carriers, decrypt both SD and HD programs, and protect with Pro:Idiom hospitality encryption.

    The Terrace QAM is said to remove the encryption standard barrier between cable and hospitality networks by converting the cable encryption standards to Pro:Idiom hospitality encryption, thus opening up the hospitality sector to be served by MSOs. Vecima says the Terrace QAM accomplishes this at a modest cost to cable MSOs. No changes are required to the hospitality network if the hospitality network already uses Pro:Idiom encryption; the fact that Terrace QAM converts the encryption to the Pro:Idiom standard will appeal to hotel operators who are considering an investment in Pro:Idiom subscriber equipment.

    Vecima says the Terrace QAM offers superior flexibility via its ability to: demodulate up to 64 QAM channels, support up to 10 integrated CableCARDs, and handle SD and HD programming in a single chassis.

    Laura Hamilton is editor-in-chief at BGR. Email her at laura.hamilton@comcast.net.

    Also posted in 2009 Diamond Reviews | Comments closed

    Cable Engineering Almanac '09: Part 1 – January 8, 2009

    By Laura Hamilton

    Laura Hamilton This current frigid economic winter of discontent doesn’t exactly provide a perfect reason for cable engineers to dream of immediate advanced service rollouts and big steps forward in technological gear. Rather, it seems that MSOs will probably see fewer voice, video and high-speed data subscriptions in 2009 in the midst of a deteriorating U.S. economy. Be that as it may, extensive technical stagnation isn’t likely given that cable engineers still have to deal with the realities of serious competition, the DTV transition and advanced architectures that have already started to roll.

    BGR recently asked a variety of vendors that serve the cable industry what 2009 might hold. And what we’re hearing is a lot about opportunities in terms of how the latest technologies will reduce operational expenses while giving cable ops a leg up on the likes of the telcos and satellite TV providers.

    ViewTeq

    The DTV Opportunity

    Take the February 2009 DTV deadline, which is a built-in revenue potential for all kinds of digital TV service providers, nasty recession or not. It’s also an engineering challenge that’s going to have more than one engineer staying awake well past the official deadline.

    Old-schoolers who have long held fast to their over-the-air signals now need to either get digital TV sets, converter boxes or a subscription to the likes of cable or satellite TV. Once cable gets through some of those doors, history has proven that those subs are likely to take advanced services later. And, as Andy Tate, director of product management at ScheduALL understates: “This will obviously put a higher demand on the existing DTV infrastructure. Cable engineers will need to continue to provide high-quality service through the transition period that could last well into 2009.”

    Exactly how the cable industry will be affected by the current economic landscape is incredibly hard to predict, which Bahaa Moukadam, Sunrise Telecom’s VP of marketing, is quick to point out. But he does add, “What drives the cable industry is the take-up rate of new and bundled services including VoIP and VOD. If consumers spend more time at home to decrease their spending outside, they could actually consume more entertainment that could boost the cable industry.”

    Jones/NCTI

    QoS and QoE

    Many of the vendors we spoke to kept coming back to the fact that cable’s technical community must spotlight the customer experience in order to keep subs from straying. “This is always the case, but in tough economic times, the subscriber naturally demands the best experience for his dollar,” Steve Windle, product manager, broadband instruments, at Trilithic, says. “High performance, automated field test equipment detects potential problems that would otherwise put a dent in the customer’s experience.”

    Mixed Signals CEO Eric Conley believes that delivering high-quality TV streams and improving uptime, in spite of increasingly complex architectures such as SDV, is imperative to the industry’s health. “There is a tremendous need to ensure an optimal QoE for subscribers given that they have lots of choices thanks to aggressive competition from satellite providers and telecoms,” he says. Given that atmosphere, cable ops are seeking solutions that dramatically decrease operational expenses while allowing them to – at the least – maintain current revenue.

    “Vendors that are offering operators products that will successfully get the job done while making a significant decrease in the operational expenses (truck rolls, engineering time) will be the most resilient in this fragile economy,” adds Conley. “Sophisticated and comprehensive monitoring solutions allow operators to determine where the audio/visual faults are occurring, enabling operators to quickly focus their repair efforts, rather than going on wild goose chases throughout the network and even the subscriber’s home. Sending a technician to a subscriber’s home costs money, so it’s important to be sure that the truck roll is necessary and that the problem is not occurring somewhere else, like at the headend.”

    Testing’s Vital Role

    Key challenges for the cable engineering community will revolve around the ability to effectively test both the infrastructure and the services in a simple, effective way. “The need to increase productivity by shortening test time, getting it installed and tested right the first time and creating test completion reports will increase. The transition from DOCSIS 2.0 to DOCSIS 3.0 will create additional challenges in learning the new nuances of DOCSIS 3.0 and getting the right tools in place to facilitate the effective migration,” Sunrise’s Moukadam states.

    New challenges will present themselves with DOCSIS 3.0 deployments, bandwidth management and the potential for deeper movement into wireless service provision, Trilithic’s Windle predicts. But he points out a potential “gotcha” in that ops could potentially concentrate on pending technological changes without considering the operational efficiencies available now. For example, plant maintenance crews may benefit by updating their sweep/test analyzers to newer technologies given that many are using analyzers that were developed more than a decade ago.

    HD’s Massive Appeal

    Given the number of consumers with HDTVs, another huge potential for cable lies in high-def, and cable engineers need to ensure their product is of the best quality without breaking the bank. “Facing pressure from the satellite players, the cable industry has to deliver ever more HD, which is an issue with bandwidth-constrained networks,” Ramin Farassat, VP of product marketing at RGB Networks, says. “Upgrading networks to deliver more bandwidth is just not in the cards given the substantial costs and time required. Fortunately, advanced statistical multiplexing is a proven and increasing popular way to deliver more HD with less bandwidth. Operators have learned to effectively apply it to considerably reduce the bandwidth requirements of HD programs without impacting the all important picture quality.”

    Gal Garniek, AVP of marketing, North America, at Scopus Video Networks feels that as cable engineers add more HD channels, they face three main challenges: minimizing costs, maximizing quality and preserving bandwidth. “Many operators are minimizing cost and maximizing quality through digital turnaround (DTA) rather than performing decode/re-encode. To preserve bandwidth, the prominent options include 3-in-1 HD transport or a switched solution. The 3-in-1 option involves significant cost and loss of quality, as well as operational complexity. Switched solutions are even more complex,” Garniek says.

    “HD splicing is a must; yet splicing three HD channels in a transport is not the same as doing it for 12 or 15 SD channels. Re-encoding and ad insertion of HD is further complicated by balancing incoming ad rates and network services rate reduction, while performing concurrent, frame accurate insertion.”

    Garniek adds that this year, engineers will see more H.264 HD sources that will have to be transcoded and downcoverted to HD. “The challenges here come from the new types of receivers, leading to potential quality issues and operational difficulties. Hybrid MPEG-2 and H.264 formats will be more common in the plant, especially for top MSOs wanting to preserve bandwidth for some of their HD channels and VOD services,” he says. “The entire chain will have to be made aware of the two formats, from headend multiplexers to set-top boxes.”

    Part 2 of this article will run in the Feb. 5 issue.

    Laura Hamilton is editor-in-chief at “BGR.” Email her at laura.hamilton@comcast.net.

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