Broadcom improves copper's noise resilience

Broadcom has demonstrated a new impulse noise protection and retransmission technology, which it claims enables service providers to deliver a ten-fold improvement in noise resilience. Designed for triple-play services in ADSL and VDSL networks, the PhyR firmware provides better service coverage, fewer errors and a better viewing experience when watching IPTV.

Increasing noise protection in current IPTV deployments has an improved effect on residual errors, but generally has an adverse effect on the serviceable reach and data rate, thereby limiting the service coverage area. According to the company, its PhyR technology significantly improves noise protection without creating limitations on reach, data rate, margin or latency. It is included in Broadcom's ADSL2+/VDSL2 firmware and provides a significant improvement in resistance against impulse noise as well as a reduction in the residual bit error rate (BER).

“Our PhyR technology allows carriers to vastly improve performance while reducing their complexity and scalability issues for new IP services,”

said Greg Fischer, VP and general manager of Broadcom's Carrier Access line of business. “PhyR technology allows service providers to offer IPTV and other high bandwidth applications utilising simplified provisioning with quality levels comparable to Ethernet, while leveraging their existing copper plant infrastructures.”

PhyR was demonstrated at the Broadband World Forum in Berlin. The company added that the technology is currently being considered for DSL standardisation.