IPTV boost as Alcatel-Lucent claims broadband world record
Editor | 10 July 2014
In what may be great news for DSL providers, Bell Labs has revealed that it has set a new world record transmission speed of 10Gbps for data over traditional copper lines.
The research arm of Alcatel-Lucent also unveiled a prototype technology that it says can demonstrate how existing copper access networks can be used to deliver 1Gbps symmetrical ultra-broadband access services. Such capability it says will enable operators to provide Internet connection speeds that are indistinguishable from fibre-to-the-home (FTTH) services in locations where it is not physically, economically or aesthetically viable to lay new fibre cables all the way into residences. This would be perfect for the cost-effective delivery of applications such as IPTV.
The Bell Labs tests used a prototype technology called XG-FAST, an extension of G.fast technology, a new broadband standard currently being finalised by the ITU. When it becomes commercially available in 2015, G.fast will use a frequency range for data transmission of 106MHz, giving broadband speeds up to 500Mbps over a distance of 100 metres. In contrast, XG-FAST uses an increased frequency range up to 500MHz to achieve higher speeds but over shorter distances. Bell Labs achieved 1Gbps symmetrical over 70 metres on a single copper pair. 10Gbps was achieved over a distance of 30 metres by using two pairs of lines. Both tests used standard copper cable provided by a European operator.
"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," said president of Alcatel-Lucent's Fixed Networks business, Federico Guillén, commenting on the test. "XG-FAST can help operators accelerate FTTH deployments, taking fibre very close to customers without the major expense and delays associated with entering every home. By making 1Gb 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."