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Whitepaper Advancements And Economics Make Vdsl Ideal Final


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New Broadband 2.0 Whitepaper

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Whitepaper Advancements And Economics Make Vdsl Ideal Final

  1. 1. Broadband 2.0: How Technology and Economics Make Copper Ideal for the Next Wave of Advanced Services Video is changing everything. It’s driving the need for service providers throughout the world to tool up for Broadband 2.0 – networks capable of handling high-definition video and advanced multimedia services at speeds of 100 megabits per second (Mbps) and beyond. Motivated equally by the need to diversify their revenue streams and to maximize return from their capital investments, the vast majority of service providers are building their Broadband 2.0 networks using hybrid architectures that include fiber for the backbone and significant utilization of existing copper infrastructure to complete the last- mile connections for their customers. To keep pace with demand, the last-mile copper in these hybrid networks will be powered by a new generation of VDSL silicon and software that delivers dramatically improved capacity and stability over service providers’ existing wire plants. VDSL equipment based on these new chipsets will use advanced techniques like bonding and vectoring to support today’s and tomorrow’s performance requirements, and to deliver the necessary quality of service and carrier-class reliability. This makes it possible for service providers to deliver multiple channels of streaming HD video, robust VoIP, and blazing-fast Internet service for a fraction of the cost of an all- fiber to the home upgrade. To find out how VDSL technology is helping service providers keep pace with price and performance pressures, read on. 1
  2. 2. Bright Opportunities amid Difficult Realities The widespread popularity of broadband multimedia services is a double-edged sword for telecommunications service providers. Declining voice traffic revenues, rising consumer expectations, and fierce competition from cable operators make service bundles – in particular those that include high- definition television – an essential survival strategy. Delivering those video-intensive services requires increased bandwidth of at least 50 to 100 Mbps. Until recently, conventional wisdom was that only a fiber-to-the-home (FTTH) network architecture could deliver those levels of performance. And unfortunately the wholesale deployment of FTTH is so costly that it strains even the deep pockets of the world’s largest telecommunications service providers. It’s been widely reported that it costs roughly $700 per home to run fiber through a typical North American neighborhood and another $650 or more to install and connect a single subscriber in an FTTH network. This conservative estimate of nearly $1400 per home does not Cost Per Household for Broadband Deployment/Installation include the full cost of central office upgrades, and other fiber-related infrastructure Fiber ‐ Europe $2,156  improvements. An AT Kearney study Fiber ‐ US $1,350  shows that deployment costs for European networks are even higher Fiber ‐ Japan $1,071  at $2156 to provision and connect a typical home for fiber-based services. DSL ‐ WW $360  This stands in sharp contrast to the $360 it Source: AT Kearney, ING, NTT, AT&T, Ikanos costs to install the equipment necessary to deliver VDSL over an existing copper pair. Completely replacing an existing network is so costly and time-consuming that most service providers are pursuing a hybrid fiber-to-the-neighborhood (FTTN) architecture which serves its subscribers with copper- based last-mile links and xDSL technology. Using the installed base of copper local loops eliminates the costly process of pulling fiber through a Estimated Cost for Broadband Deployment/Installation neighborhood and in United Kingdom bringing it to each home. £35 Additional savings are £28.3 £30 realized because most xDSL customer premises Variable £25 equipment can be Fixed £20 Billions installed by the subscriber. Meanwhile, £15 recent advances in next- generation DSL – known £10 as VDSL – technology £5.1 £5 that improve the reach, stability and overall £0 capacity of legacy copper FTTN/VDSL FTTH infrastructures now Source: Analysys Mason allows deployment of 2
  3. 3. FTTN networks that reliably deliver 50 to 100 Mbps at a fraction of the cost of a full-optical solution. For example, a study conducted by Analysis Mason concludes that a program to deploy a point-to-point FTTH network across the entire United Kingdom would require an investment of nearly £28.8 billion or the equivalent of nearly $50 billion at today’s exchange rates. In contrast, deploying a hybrid fiber and VDSL network was estimated to cost a fraction of the cost – only £5.1 billion or just 17 percent of the cost of a full FTTH network – while still being able to deliver an equivalent level of bandwidth and service. Enabling Technologies Bolster VDSL’s Advantages In addition to these dramatic cost savings, VDSL continues to evolve to meet the requirements of the service provider market and demands of delivering high-definition video and other bandwidth-hungry services. For instance, noise mitigation technology is used to enhance link robustness, reliability and availability under severe and time-varying noise environments. Ikanos’ Quality Video (iQV™) technology is a unique combination of ITU-T standard noise cancellation and rate adaptation algorithms that monitors line conditions, dynamically adjusts data transmission speeds and maintains line stability. This technology ensures the optimal quality of service and VDSL2 300 Mbps viewing experience that Vectored consumers require from 250 their video, voice and data networking VDSL2 200 providers. Bonded 150 In addition, these technologies enable VDSL2 100 PON (10G split 128/2.5G split 32) stable delivery of 50 to 100 Mbps of service over 75 distances approaching ADSL2+ 50 one mile – a sufficient Bonded length to service the vast ADSL2+ PON (1G split 32) 25 majority of populations in urban and suburban 0 .5 1.0 1.5 2.0 locations. Should Miles Source: Broadband Forum, Ikanos, Others additional bandwidth and greater distance be needed, pair bonding techniques can be used to support another data channel over the second twisted-pair, found in the last-mile runs of most residences and commercial installations. Bonding logically combines the capacity of the two channels in a transparent manner so the subscriber sees a single connection that delivers up to 200 Mbps in performance. Other enhancements including vector processing will provide even greater performance over time. Vector processing (another ITU-T standard technology) is a unique extension of Dynamic Spectral Management (DSM) technology that cancels the crosstalk often found on copper lines. When deployed, vectoring is expected to boost the potential capacity of a network’s twisted copper pairs to 300 Mbps and beyond. The enhanced link stability made possible by the powerful vectoring algorithms can also be used to increase the distances over which those speeds can be delivered to residential or commercial subscribers. In addition to capacity and reach, vectoring gives service providers several other important technical advantages over traditional noise cancellation techniques: Vectoring’s advanced crosstalk cancellation capabilities enable the highest possible data rates and quality of service levels – far beyond that of even fiber-to-the-home installations – regardless of the network’s subscriber density or other services running within the wiring plant. 3
  4. 4. Vectoring’s noise cancellation capabilities enable transparent coexistence with legacy services such as T1/E1 for a smooth, painless upgrade cycle that can be phased to suit customer and service provider needs. The dramatically-improved signal integrity made possible by vectoring also allows service providers to reliably extend the reach of their lines, making it possible for them to offer triple- play-plus services to virtually all of their subscribers. Compelling Advantages The lower costs and advanced capabilities of hybrid copper/optical systems are allowing many major telecommunications providers to push forward with their Broadband 2.0 roll outs, despite reduced access to capital and slimmer profit margins. AT&T is employing just such a hybrid FTTN/VDSL architecture in its network – and has publicly stated that it plans to do so until at least 2018. Most other North American and overseas service providers are following suit and committing to a hybrid FTTN growth strategy. These include Bell Canada, NTT, Korea Telecom and many others. Meanwhile, many other service providers once considered staunch proponents of FTTH architectures have reconsidered their commitment and altered their plans. Recently, France Telecom backed away from FTTH. So have many others, driven by the economic realities and price/performance advantages of VDSL. Looking Ahead In the uncertain conditions of today’s global economy, there are few things that telecommunication service providers can count on except that consumer demand for bandwidth will continue to grow and capital for modernizing their infrastructures will remain in short supply for most of the upcoming decade. To help service providers meet these challenges, AT&T’s Technology Roadmap silicon and network equipment manufacturers Innovative Vectoring are producing the next Technology Will Increase Effective Data Rates Even generation of VDSL Advanced Bonding Further VDSL 300+ Mbps Bandwidth (Mbps) products. Technology Available in Ikanos Capri Duo These advanced VDSL Chipsets Doubles Data Rate offerings allow service User Peak Demand providers to upgrade their 200+ Mbps User Avg. Demand existing copper infrastructure to deliver services that meet and exceed the capabilities of capital-intensive all-fiber networks at a fraction of 2008 2018 the price. This Source: AT&T, Ikanos convergence of technological advances and economic realities makes existing copper infrastructures and VDSL the medium of choice for delivering tomorrow’s Broadband 2.0 services. 4
  5. 5. About Ikanos Communications, Inc. Ikanos Communications, Inc. (NASDAQ: IKAN) is a leading provider of advanced broadband semiconductor and software products for the digital home. The company’s broadband DSL, communications processors and other offerings power access infrastructure and customer premises equipment for many of the world’s leading network equipment manufacturers and telecommunications service providers. For more information, visit References “The Costs Of Deploying Fibre-Based Next-Generation Broadband Infrastructure.” A study conducted by Analysys Mason, commissioned by the Broadband Stakeholder Group. September, 2008. Study for the Hellenic Ministry of Transport and Communications, conducted by AT Kearney. May 2008. FTTH in Europe: Forecast & Prognosis, 2006-2011. A report by Heavy Reading. The Economics of Next Generation Access - Final Report. A study conducted by WIK-Consult for the European Competitive Telecommunication Association (ECTA). September 2008. AT&T’s Ten Year Future of DSL. Excerpted from a presentation made by AT&T president John Stankey to Bank of America. 2009. 5
  6. 6. © 2010 Ikanos Communications, Inc. All Rights Reserved. Ikanos Communications, Ikanos, the Ikanos logo, the “Bandwidth without boundaries” tagline, Fusiv, Fx, FxS, iQV and Ikanos Accelity, Ikanos Capri, Ikanos ISOS, Ikanos Maxtane, Ikanos NodeScale, Ikanos Orion, Ikanos Solos, Ikanos Velocity, Ikanos Vulcan are among the trademarks or registered trademarks of Ikanos Communications. All other trademarks mentioned herein are properties of their respective holders. This information is protected by copyright and distributed under licenses restricting, without limitation, its use, reproduction, copying, distribution, and de-compilation. No part of this information may be reproduced in any form by any means electronic, mechanical, magnetic, optical, manual, or otherwise, without prior written authorization of an authorized officer of Ikanos Communications, Inc (Ikanos). Disclaimer This information is furnished for informational use only, is subject to change without notice, and should not be construed as a commitment by Ikanos. Ikanos assumes no responsibility or liability for any errors or inaccuracies that may appear in this material. Ikanos makes no representations or warranties with respect to the design and documentation herein described and especially disclaims any implied warranties of merchantability or fitness for any particular purpose. References in this document to an industry or technology standard should not be interpreted as a warranty that the product or feature described complies with all aspects of that standard. In addition, standards compliance and the availability of certain features will vary according to software release version. For further information regarding the standards compliance of a particular software release, and the features included in that release, refer to the release notes for that product. Ikanos reserves the right to revise the design and associated documentation and to make changes from time to time in the content of this document without obligation of Ikanos to notify any person of such revisions or changes. Use of this document does not convey or imply any license under patent or other rights. Ikanos does not authorize the use of its products in life-support systems where a malfunction or failure may result in injury to the user. A manufacturer that uses Ikanos products in life-support applications assumes all the risks of doing so and indemnifies Ikanos against all charges. For more information, contact Ikanos. Ikanos Communications, Inc. 47669 Fremont Boulevard Fremont, California 94538 P +1 510.979.0400 F +1 510.979.0500 6