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Jitter smoothing and traffic modeling for MPEG‐2 video transport over ATM networks
Author(s) -
Zhu Wenwu,
Wang Yao,
Zhang YaQin
Publication year - 1998
Publication title -
international journal of imaging systems and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.359
H-Index - 47
eISSN - 1098-1098
pISSN - 0899-9457
DOI - 10.1002/(sici)1098-1098(1998)9:5<332::aid-ima3>3.0.co;2-b
Subject(s) - jitter , computer science , variable bitrate , asynchronous transfer mode , constant bitrate , real time computing , network packet , smoothing , computer network , packet switching , bit rate , telecommunications , computer vision
In this article, we study how to deal with jitter when a variable‐bit‐rate (VBR) MPEG‐2 video is delivered through asynchronous transfer mode (ATM) networks. First, the MPEG‐2 system and its timing model are reviewed and difficulties introduced by ATM cell delay jitter are elucidated. Second, approaches to smoothing network jitter for both constant‐bit‐rate and VBR traffic are reviewed. A novel approach to modeling the end‐to‐end MPEG‐2 packet generation and arrival process in the presence of network jitter is next presented. Based on this model, the buffer behavior of the MPEG‐2 transport stream system target decoder is simulated. Simulation results show that jitter significantly affects the required decoder buffer size and packet loss ratio. © 1998 John Wiley & Sons, Inc. Int J Imaging Syst Technol, 9, 332–339, 1998