A Congestion Avoidance Mechanism for Enhancing Performance of Packet Loss Concealment in VoIP Coders

摘要

VoIP speech coders have PLC mechanisms to compensate for a packet loss. In this paper, various kinds of packet losses are designed. With these losses the PLC algorithms of speech coders are evaluated and analyzed by PESQ value. Based on these outcomes, reduction of loss rate is crucial, especially for VoIP. Thus, we suggest an enhanced congestion avoidance RED mechanism to enable PLC work better in reliable manner within its perceptual capabilities for VoIP service in the network.