The days of ADSL being seen as a dead-end choice for high-speed broadband maybe on the wane as new techniques are shown off by a number of international telcos indicating speeds of over 100Mbps on traditional copper are achievable.
The latest news came overnight with an announcement by Hong Kong-based telco provider Huawei that it had achieved downstream speeds of 700Mbps over a distance of 400metres. The technique uses SuperMIMO or multi-in/multi-out.
Huawei’s process involved using four twisted pairs and addressing the issue of crosstalk or mixing of electronic signals between pairs, boosting bandwidth by as much as 75% to reach 175Mbps. To achieve its 700Mbps, the company didn’t give away too much, saying it leveraged its SuperMIMO technology. Its technique would also “accommodates high-speed FTTB/FTTC access and bandwidth-hungry private line applications, such as base station access”.
Online news service iTWire also reported recently that Alcatel-Lucent is also testing new DSL technology and has managed to achieve up to 300Mbps over 400metres using two twisted pairs. The company is reported to have said the technology is still able to deliver 100Mbps at up to 1000metres.