PERFORMANCE ANALYSIS OF RECONSTRUCTION ALGORITHMS FOR PACKET VOICE COMMUNICATIONS

Abstract

In this paper, we investigate two packet voice reconstruction algorithms in packet voice communications. The main difference between the two algorithms is that in algorithm I the play-out epoch of packets at the receiver is fixed, whereas algorithm Il it can be changed according to packet delays. We analyze these algorithms by obtaining the probability distributions of gap duration, silence reconstruction measure, resequencing buffer delay, and overall delay that are believed to represent effectively various aspects of the reconstruction behavior in a packetized voice transmission system. Then, we give numerical results and discuss several distinct aspects of the two algorithms.