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Novel Rate-Jitter Control Algorithms Modeling and Analysis

Authors:
Madhu Babu Sikha
Manivasakan Rathinam

Keywords: TDMoIP; MMPP; rate-jitter; PSN; state depen- dent service

Abstract:
Time Division Multiplexing over Internet Protocol (TDMoIP) is a transport technology that extends the voice, video and data traffic transparently over IP. When TDM traffic is packetized and injected into a packet switched network (PSN) for transportation, packets arrive at the destination with different inter-arrival times, due to variable delay (jitter) introduced by PSN. This network induced jitter should be minimized, because TDM devices operate at constant bit rate. Problem of jitter from theoretical (competitive and statistical analysis) to more practical view point had been well studied. In this paper, we have proposed two on-line algorithms, algorithm-A and algorithm-B to minimize rate-jitter. We have shown both analytically and by simulation that the rate-jitter achieved by algorithm-A is strictly less than the rate-jitter of an on-line algorithm proposed in a previous work. The simulation results shows that algorithm-B also achieves less rate-jitter than the reference algorithm. We also undertake the statistical analysis of above algorithms, in particular, we have modeled jitter buffer as an MMPP/D/1/Bon queue by making two assumptions on Markov modulated Poisson process (MMPP) and steady state queue length distribution is calculated. The correctness of the analytical results corresponding to our proposed algorithms is verified with simulation results. From the simulation results, it is also shown that the mean waiting time of a packet in the buffer is less for both proposed algorithms compared with the reference algorithm.

Pages: 22 to 28

Copyright: Copyright (c) IARIA, 2013

Publication date: April 21, 2013

Published in: conference

ISSN: 2308-4022

ISBN: 978-1-61208-263-9

Location: Venice, Italy

Dates: from April 21, 2013 to April 26, 2013