& 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
    Light Reading’s Upskill U is a FREE, interactive, online educational resource that delivers must-have education on themes that relate to the overall business transformation taking place in the communications industry.
    LIVE NOW!
    Friday, December 2, 1:00PM EST
    The SDN Approach to IP & Optical Integration
    Sterling Perrin, Senior Analyst, Heavy Reading
    UPCOMING COURSE SCHEDULE
    Friday, December 2, 1:00PM EST
    The SDN Approach to IP & Optical Integration
    Sterling Perrin, Senior Analyst, Heavy Reading
    in association with:
    From The Founder
    Light Reading today starts a new voyage as part of a larger Enterprise.
    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.
    Women in Comms Introduction Videos
    Korn Ferry Consultant: How to Find, Cultivate & Be the Best Talent

    11|30|16   |   4:10   |   (1) comment


    Erin Callaghan, a managing consultant for Korn Ferry Futurestep, shares strategies for companies to improve how they recruit and for women to ensure they don't get lost in the pipeline.
    LRTV Custom TV
    We Can Make the World More Sustainable

    11|29|16   |     |   (0) comments


    GeSI is a global e-Sustainability Initiative organization bringing together 40 big multinational companies around the world. According to GeSI's report, information and communication technology can make the world more sustainable. Luis Neves, chairman of GeSI, shared with us his opinion at Ultra-broadband Forum (UBBF2016).
    LRTV Custom TV
    Finding a New Way to Engage Customers & Drive Revenue

    11|29|16   |     |   (0) comments


    Mobile revenues are declining. Digicel, a player in the Caribbean telecommunications/entertainment space, has found a new way to engage customers and drive revenue. John Quinn, CTO of Digicel, shared with us its story at Ultra-broadband Forum (UBBF2016)
    LRTV Custom TV
    Do You Really Need Gigabit Infrastructure?

    11|29|16   |     |   (0) comments


    Altibox is the biggest fiber-to-the-home (FTTH) player and the largest provider of video and TV in Norway. They started out with zero customers in 2002. Now they have close to half a million households and companies attached to their FTTH business. Nils Arne, CEO of Altibox shared with us their story and insight on 5G at Ultra-broadband Forum (UBBF2016).
    LRTV Custom TV
    BT’s Openreach Strategy & Its Updates in 2016

    11|29|16   |     |   (0) comments


    A lot of developments at Openreach this year in terms of strategy and planned investments. Peter Bell, CIO of Openreach BT, shared with us the updates of Openreach at Ultra-broadband Forum (UBBF2016).
    LRTV Custom TV
    ITU: The Broadband Is Our Future

    11|29|16   |     |   (0) comments


    At Ultra-broadband Forum, Houlin Zhao, Secretary General of ITU, discussed how important it is for countries, companies and everybody to be working together to help to build the broadband and digital economies (UBBF2016).
    LRTV Custom TV
    Tackling 5G in Dallas

    11|28|16   |     |   (0) comments


    Here are our highlights of the 5G North America show in Dallas, Texas with Light Reading's Dan Jones.
    LRTV Interviews
    Cox Prepping for Virtualization Trials

    11|14|16   |     |   (0) comments


    In this video interview, Cox's Jeff Finkelstein discusses MSO's plans to test managed business services in early 2017 and tackle Distributed Access Architectures.
    LRTV Custom TV
    Drivers & Potential of NGP

    11|11|16   |     |   (0) comments


    ETSI has created an Industry Specification Group to work on Next Generation Protocols (NGP ISG), looking at evolving communications and networking protocols to provide the scale, security, mobility and ease of deployment required for the connected society of the 21st century. The NGP ISG will identify the requirements for next generation protocols and network ...
    LRTV Custom TV
    Huawei IP 2020 for Future Networks

    11|11|16   |     |   (0) comments


    Future Networks should satisfy many requirements such as high throughput, extremely low latency, flexible mobility, intrinsic security, networking automation, and so forth. The Chief Architect of Huawei Future Networks addresses a holistic solution, i.e., IP 2020, to achieve these requirements for various future life scenarios (e.g., autonomous driving, tactile ...
    LRTV Custom TV
    Digital Object Architecture

    11|11|16   |     |   (0) comments


    Digital Object Architecture provides a basic information infrastructure that can facilitate interoperability between or among different systems, processes, and other information resources, including different identity management systems. Digital objects are networked objects that are named by digital object identifiers and instantiated by an infrastructure service ...
    LRTV Custom TV
    BT's Openreach Has High Hopes for Long-Reach VDSL

    11|11|16   |   06:04   |   (0) comments


    Peter Bell, Network Portfolio CIO at BT's access business Openreach, talks about the operator's trial of a new broadband access technology called Long Reach VDSL.
    Upcoming Live Events
    December 6-8, 2016, The Westin Excelsior, Rome
    May 16-17, 2017, Austin Convention Center, Austin, TX
    All Upcoming Live Events
    Infographics
    Hot Topics
    AT&T Debuts DirecTV Now on New Video Platform
    Mari Silbey, Senior Editor, Cable/Video, 11/28/2016
    Apple Seeds 5G? Seeks 'Multi-Gigabit' Chip Designer
    Dan Jones, Mobile Editor, 11/30/2016
    Altice Plans FTTH for Entire US Footprint
    Iain Morris, News Editor, 11/30/2016
    Altice FTTH Bill Could Hit Almost $9.6B in US
    Iain Morris, News Editor, 12/1/2016
    Samsung Bows to Investors, Considers Revamp
    Iain Morris, News Editor, 11/29/2016
    Like Us on Facebook
    Twitter Feed
    BETWEEN THE CEOs - Executive Interviews
    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.
    Join us for an in-depth interview between Steve Saunders of Light Reading and Alexis Black Bjorlin of Intel as they discuss the release of the company's Silicon Photonics platform, its performance, long-term prospects, customer expectations and much more.
    Live Digital Audio

    Even when there's a strong pipeline of female talent in the comms industry, it tends to leak all the way to the top. McKinsey & Company says women experience pipeline leakage at three primary points: being unable to enter, being stuck in the middle or being locked out of the top. Each pipeline pain point presents its own challenges, but also opportunities to stop the leak. Wireless operator Sprint is making a conscious effort to improve its own pipeline from new recruits to the C-suite, and it wants the rest of the industry to do the same. In this Women in Comms radio show, WiC Board Member and Sprint Vice President of Enterprise Sales Nelly Pitocco will give us her take on the industry's pipeline challenges. Pitocco, who joined Sprint in May and has spent 20 years in the comms industry, will also offer solutions, share how Sprint is tackling the challenge within its own organization and take your questions live on air.