& cplSiteName &

Alcatel-Lucent Claims Copper Speed Record

Light Reading
News Wire Feed
Light Reading
7/9/2014
50%
50%

PARIS -- Bell Labs, the research arm of Alcatel-Lucent (Euronext Paris and NYSE: ALU), has set a new broadband speed record of 10 gigabits-per-second (Gbps) using traditional copper telephone lines and a prototype technology that demonstrates how existing copper access networks can be used to deliver 1Gbps symmetrical ultra-broadband access services.

Achieving 1 Gbps 'symmetrical' services – where bandwidth can be split to provide simultaneous upload and download speeds of 1 Gbps – is a major breakthrough for copper broadband. It will enable operators to provide Internet connection speeds that are indistinguishable from fiber-to-the-home services, a major business benefit in locations where it is not physically, economically or aesthetically viable to lay new fiber cables all the way into residences. Instead, fiber can be brought to the curbside, wall or basement of a building and the existing copper network used for the final few meters.

The Bell Labs tests used a prototype technology called XG-FAST. This is an extension of G.fast technology, a new broadband standard currently being finalized by the ITU. When it becomes commercially available in 2015, G.fast will use a frequency range for data transmission of 106 MHz, giving broadband speeds up to 500 Mbps over a distance of 100 meters. In contrast, XG-FAST uses an increased frequency range up to 500 MHz to achieve higher speeds but over shorter distances. Bell Labs achieved 1 Gbps symmetrical over 70 meters on a single copper pair. 10 Gbps was achieved over a distance of 30 meters by using two pairs of lines (a technique known as “bonding”). Both tests used standard copper cable provided by a European operator.

Marcus Weldon, President of Bell Labs: “Our constant aim is to push the limits of what is possible to ‘invent the future’, with breakthroughs that are 10 times better than are possible today. Our demonstration of 10 Gbps over copper is a prime example: by pushing broadband technology to its limits, operators can determine how they could deliver gigabit services over their existing networks, ensuring the availability of ultra-broadband access as widely and as economically as possible.”

Commenting on the achievement, Federico Guillén, President of Alcatel-Lucent’s Fixed Networks business said: “The Bell Labs speed record is an amazing achievement, but crucially in addition they have identified a new benchmark for ‘real-world’ applications for ultra-broadband fixed access. XG-FAST can help operators accelerate FTTH deployments, taking fiber very close to customers without the major expense and delays associated with entering every home. By making 1 gigabit symmetrical services over copper a real possibility, Bell Labs is offering the telecommunications industry a new way to ensure no customer is left behind when it comes to ultra-broadband access.”

Technical background information
The primary factors influencing broadband speeds over copper are:

  • Distance: the longer the copper connection between the access node and the customer’s telephone socket, the slower the broadband speed. This is dictated by attenuation.
  • Frequency: the wider the frequency range, the faster the broadband speed that can be achieved. The Shannon Limit dictates the maximum possible speed for a given medium and frequency spectrum.
  • Higher frequencies attenuate more quickly than lower frequencies, meaning there are diminishing returns in speed as the frequency range increases.

    During testing, Bell Labs showed that XG-FAST technology can deliver 1 Gbps symmetrical services over 70 meters (for the cable being tested). This was achieved using a frequency range of 350 MHz. Signals at higher frequencies were completely attenuated after 70 meters.

    In practical situations, other significant factors that can influence actual speeds (not taken into account during these tests but which have been studied extensively elsewhere) include the quality and thickness of the copper cable and cross-talk between adjacent cables (which can be removed by vectoring).

    Alcatel-Lucent (NYSE: ALU)

    (1)  | 
    Comment  | 
    Print  | 
  • Newest First  |  Oldest First  |  Threaded View        ADD A COMMENT
    rradina
    50%
    50%
    rradina,
    User Rank: Light Beer
    7/9/2014 | 9:53:31 AM
    Wireless Anyone?
    At such short distances, couldn't low density suburban settings use some form of WiFi?  I'd really prefer the cable company use WiFi from the pedestal instead of incurring the cost of replacing the line everytime someone complains about problems with their service.  Trying to transmit 500mhz over UTP would seem just inviting lots of new runs from the curb just like the cable companies do with their coax.
    Educational Resources
    sponsor supplied content
    Educational Resources Archive
    From The Founder
    Cisco's Conrad Clemson, recently promoted to head up the company's Service Provider Apps & Platforms developments, talks to Light Reading's Founder and CEO Steve Saunders about how he's bringing cloud video, mobile and virtualization together to empower network operators.
    Flash Poll
    Live Streaming Video
    Charting the CSP's Future
    Six different communications service providers join to debate their visions of the future CSP, following a landmark presentation from AT&T on its massive virtualization efforts and a look back on where the telecom industry has been and where it's going from two industry veterans.
    LRTV Interviews
    Heavy Reading: The Web-Scale View

    1|18|17   |     |   (0) comments


    At Light Reading's 2020 Vision Executive Summit in Rome, Heavy Reading's former chief analyst Patrick Donegan shared insight from the recent web-scale operators report, which featured research on how web-scale operators view the market, the best web-scale companies to ...
    LRTV Custom TV
    Cisco's Cloud Scale Networking: Automation, Virtualization & Simplification

    1|18|17   |     |   (0) comments


    Cisco's Sanjeev Mervana outlines the latest innovations in networking technology at CES 2017 in Las Vegas.
    LRTV Custom TV
    ADVA Talks Innovation & the Future of Networking

    1|17|17   |     |   (0) comments


    Ray Le Maistre and Christoph Glingener, CTO of ADVA Optical Networking, discuss the current state of the industry, cooperation and collaboration, open innovation and the future of networking.
    LRTV Custom TV
    Cisco's Infinite Video Platform

    1|17|17   |     |   (0) comments


    Cisco's Infinite Video Platform allows service providers to deliver broadcast-quality video over IP networks. Infinite video supports many devices, from 4K TVs to tablets to game consoles. Join Cisco's Rajeev Raman for a brief tour and live demo.
    LRTV Interviews
    Masergy: Ability to Adapt Key for NFV

    1|16|17   |   6:40   |   (0) comments


    Speaking at Light Reading's 2020 Vision in Rome, Masergy's VP, Global Technology, Ray Watson, said agility is key to providing the mix and match NFV-based services that are driving business for the managed service provider today.
    LRTV Interviews
    Equinix: The Data Explosion

    1|13|17   |   4:16   |   (0) comments


    At Light Reading's 2020 Vision in Rome, Eric Schwartz, president of EMEA, Equinix, talked about how Equinix is helping its customers manage the influx of data today, and how it's preparing for a future filled with millions of connected IoT devices.
    LRTV Interviews
    Heavy Reading: The Changing Data Center Landscape

    1|12|17   |   6:05   |   (1) comment


    At Light Reading's 2020 Vision event in Rome, Heavy Reading's Senior Analyst Roz Roseboro talks about how virtualization is impacting data center evolution and how that evolution is affecting the relationship between service providers, data center operators and public cloud providers.
    LRTV Interviews
    Boingo: Prepping for Millions of Devices

    1|12|17   |   5:07   |   (1) comment


    At Light Reading's 2020 Vision in Rome, Boingo's CTO Derek Peterson discusses how wireless operators will address the needs of low-bandwidth and high-bandwidth apps at the same time, the need for more MHz, the impact of IoT and more.
    LRTV Interviews
    Comcast Shows Off Gig Gateway at CES

    1|11|17   |     |   (1) comment


    With its largest presence at CES in years, Comcast took the wraps off its long-awaited gigabit gateway and a new platform for managing the home WiFi network. Light Reading Senior Editor Mari Silbey sat down with EVP Chris Satchell to discuss the latest Comcast advance, and met with VP of Product Strategy and Development Andrea Peiro to walk through a demo of the ...
    LRTV Interviews
    Colt: End-to-End Key for 2017

    1|10|17   |   6:21   |   (0) comments


    At Light Reading's 2020 Vision Executive Summit in Rome, Nico Fischbach of Colt said having a multi-carrier, end-to-end service proposition is going to be key for 2017 -- and SD-WAN is instrumental in making it happen.
    From the Founder
    Cisco's Clemson on Mobile Cloud Video

    1|9|17   |     |   (1) comment


    Cisco's Conrad Clemson, recently promoted to head up the company's Service Provider Apps & Platforms developments, talks to Light Reading's Founder and CEO Steve Saunders about how he's bringing cloud video, mobile and virtualization together to empower network operators. "If you think about where we're going… whether it's a mobile application, or a video ...
    LRTV Custom TV
    VMware Telco NFV Solutions – Preparing for 5G & IOT

    1|9|17   |     |   (0) comments


    Shekar Ayyar, EVP & Corporate Strategy/General Manager of Telco for VMware, discusses VMware's Telco NFV solutions role and foundation for the Imminent Arrival of 5G & IOT.
    Upcoming Live Events
    March 21-22, 2017, The Curtis Hotel, Denver, CO
    May 15-17, 2017, Austin Convention Center, Austin, TX
    All Upcoming Live Events
    Infographics
    Hot Topics
    A Women in Comms Glossary
    Sarah Thomas, Director, Women in Comms, 1/18/2017
    Is Cable One Beefing Up for Slaughter?
    Alan Breznick, Cable/Video Practice Leader, Light Reading, 1/20/2017
    Nokia CTO: 2017 Is the Year 5G Gets in the Field
    Dan Jones, Mobile Editor, 1/19/2017
    TV's Paradox: No HDR Without 4K
    Mari Silbey, Senior Editor, Cable/Video, 1/17/2017
    Cable Has One Thing Verizon Needs
    Mari Silbey, Senior Editor, Cable/Video, 1/17/2017
    Like Us on Facebook
    Twitter Feed
    BETWEEN THE CEOs - Executive Interviews
    Light Reading founder and CEO Steve Saunders chats with Sportlogiq CEO Craig Buntin about sports data analysis.
    Eyal Waldman, CEO of Mellanox Technologies, speaks to Steve Saunders, CEO of Light Reading, for an exclusive interview about the 100 GB cable challenge, cybersecurity and much more.
    Animals with Phones
    Live Digital Audio

    Playing it safe can only get you so far. Sometimes the biggest bets have the biggest payouts, and that is true in your career as well. For this radio show, Caroline Chan, general manager of the 5G Infrastructure Division of the Network Platform Group at Intel, will share her own personal story of how she successfully took big bets to build a successful career, as well as offer advice on how you can do the same. We’ll cover everything from how to overcome fear and manage risk, how to be prepared for where technology is going in the future and how to structure your career in a way to ensure you keep progressing. Chan, a seasoned telecom veteran and effective risk taker herself, will also leave plenty of time to answer all your questions live on the air.