Tuesday, October 10, 2006

Dynamic Spectrum Management (DSM) Seen Boosting Copper Access Beyond VDSL2

At Broadband Forum Europe in Paris, a new industry consortium was announced to spearhead the development and implementation of Dynamic Spectrum Management (DSM) as a technology for extending copper access beyond xDSL.

The consortium, which is led by ECI Telecom, see DSM as a promising technology that could provide reliable, fiber-optic-like rates over the existing copper infrastructure. The rates would exceed those of VDSL2.

The group is funded with an expected grant of 8 million EURs (US$10 million) over the next three years, and is being financed by the Chief Scientist Office of the Israeli Government.

"The main obstacle for the advancement of DSL technology is the interference ("crosstalk") generated from different DSL lines that share the same telephone cable binder," said Professor John Cioffi, Professor of Engineering at Stanford University, a pioneer of DSM research, who is also recognized as the inventor of the DMT line code. "DSM is a promising technology for the future evolution of broadband access networks using existing copper infrastructure."

"DSM is the next step in the evolution of telco's access infrastructure. It will allow telcos to provide high-bandwidth services cost-effectively by leveraging FTTC topologies rather than replacing all copper wires with fiber-optics until the subscriber premises (FTTH)," said Zvika Weinshtock, VP Marketing of ECI Telecom's Broadband Access Division.