Delay jitter performance of video traffic in a cellular wireless ATM network

Abstract

The delay jitter performance of video traffic, modeled using a Markov Modulated Poisson Process (MMPP), in a cellular wireless ATM network is analyzed. The uplink MAC (Medium Access Control) protocol is implemented by an enhanced TDMA/DR (Time Division Multiple Access with Dynamic Reservation) MAC protocol. Voice, compressed video and data are used as test traffic. The delay jitter (or cell delay variation) of MMPP video is evaluated using approximate analysis and computer simulation, while that of Motion Picture Expert Group (MPEG) video is evaluated using computer simulation. Numerical results indicate that, with very high probability, the MMPP video delay jitter is practically zero and, with very low probability, it is bounded within 2 TDMA frame intervals. Similarly, simulation results indicate that, with very high probability, the MPEG video delay jitter is also practically zero and, with very low probability, it is bounded within 5 TDMA frame intervals.