分布式多媒体通信中基于缓存数据量控制的播放端同步控制系统稳定性分析

基金项目: 国家自然科学基金资助项目（69972007）

详细信息

Stability Analysis of Distributed Multimedia Playout Synchronization Using Buffer Level Control

1.
Continuing Education School, Beijing University of Posts and Telecommunications, Beijing 100876, China
2.
Zhuhai Applied R& D Centes of City University of Hong Kong, Zhuhai 519080, China

摘要: 本文尝试从控制论的角度来分析多媒体同步控制系统，以得出系统参数间的约束关系．文章应用Routh判据，对一种典型的基于缓存数据量控制的播放端同步控制系统进行了稳定性分析，通过对系统模型进行量化分析与计算，得出了系统稳定的充要条件，给出了系统参数——同步调整期L和平滑因子a之间的约束关系．
- 分布式多媒体 /
- 播放端同步 /
- 控制论 /
- 稳定性
Abstract: This paper analyzes the multimedia synchronization model from the viewpoint of cybernetics to get the relation of system parameters. The stability of a typical buffer-oriented playout synchronization system is analyzed based on Routh criterion. The sufficient and necessary conditions of stability are obtained. The restriction relationship between two important system parameters: synchronization adaption phase L and smoothing factor a is also given.
- distributed multimedia /
- playout synchronization /
- cybernetics /
- stability

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