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Network Jitter Estimation Algorithm for Robust VoIP System in Vehicle Environment  

Seo, Kwang-Duk (광운대학교 전파공학과)
Lee, Jin-Ho (광운대학교 전파공학과)
Kim, Hyoung-Gook (광운대학교 전파공학과)
Publication Information
The Journal of The Korea Institute of Intelligent Transport Systems / v.10, no.4, 2011 , pp. 93-99 More about this Journal
Abstract
This paper proposes a novel network jitter estimation algorithm for robust VoIP communication system. The proposed method computes the current network environment mode using the differences of arrival time and generation time from sequential received packets. According to the current network environment mode, the jitter variance weights is adjusted to minimize the error for estimating the network jitter. The jitter average and variance are calculated by the autoregressive estimated algorithm, and then the network jitter is estimated by applying the jitter variance weights.
Keywords
VoIP; spike detection; network jitter estimation; jitter buffer control;
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