Wednesday, October 3, 2007

Broadcom to Demo Impulse Noise Protection Technology

Broadcom is ready to demonstrate its recently announced "PhyR" (pronounced "Fire") firmware, which targets a ten-fold improvement in noise resilience over ADSL and VDSL networks. From a user perspective, the improvement in performance provides better service coverage, fewer errors and a better viewing experience when watching IPTV systems equipped with PhyR.

Video services, provisioned over traditional copper loops, are susceptible to noise sources in the ambient environment that limit the coverage area over which services can be made available, or may even reduce video quality by inducing "macroblocking," or corrupted images. Today's IPTV deployments require carriers to provide a certain acceptable level of impulse noise protection and margin settings, which in turn, determine an achievable data rate and the loop length over which voice, video and data or IPTV services will be delivered. 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.

Broadcom PhyR technology is included in the company'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). This results in fewer dropped lines and an improved user experience for IPTV and other triple play services. Broadcom said that its PhyR technology significantly improves noise protection without creating limitations on reach, data rate, margin or latency.

Broadcom noted that its PhyR impulse noise protection and retransmission technology is currently sampling to early access customers.

See also