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The Journal of The Korea Institute of Intelligent Transport Systems Vol.10 No.4 pp.93-99

자동차 환경내 안정적인 VoIP 시스템을 위한 네트워크 지터 추정 알고리즘

서광덕,이진호,김형국

Network Jitter Estimation Algorithm for Robust VoIP System in Vehicle Environment

Kwang-Duk Seo,Jin-Ho Lee,Hyoung-Gook Kim

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.