P2P-TV流媒体系统鲁棒自适应速率控制算法及仿真

doi:10.16182/j.issn1004731x.joss.17-0042

系统仿真学报 ›› 2019, Vol. 31 ›› Issue (1): 120-126.doi: 10.16182/j.issn1004731x.joss.17-0042

P2P-TV流媒体系统鲁棒自适应速率控制算法及仿真

尹凤杰, 杨晖, 张颖

辽宁大学信息学院,辽宁沈阳 110036

收稿日期:2017-01-09 修回日期:2017-03-18 出版日期:2019-01-08 发布日期:2019-04-16
作者简介:尹凤杰(1965-),女,沈阳,博士,教授,研究方向为无线网络和通信网络优化控制;杨晖(1967-),女,沈阳,硕士,副教授,研究方向为无线网络。
基金资助:
辽宁省教育厅科学研究一般项目(L2015204)

Robust Adaptive Rate Control Algorithm and Its Simulation for P2P-TV Streaming Media Systems

Yin Fengjie, Yang Hui, Zhang Ying

School of Information, Liaoning University, Shenyang 110036, China

Received:2017-01-09 Revised:2017-03-18 Online:2019-01-08 Published:2019-04-16

摘要/Abstract

摘要： 基于滑模控制(Sliding Mode Control, SMC)提出一种P2P-TV流媒体节点上行速率控制算法。该算法通过合理设计滑模控制器从而自适应控制同时连接邻居节点信号进程的数目,进而控制上行速率,达到系统资源的公平利用。由于滑模控制对于网络模型的不确定性、网络参数的时变性以及网络抖动具有较强的鲁棒性,采用该算法在网络条件变化时,避免了系统拥塞。仿真结果表明该方法可使队列长度快速收敛,同时队列振荡较小,从而可以使传输延时抖动维持在一个较小的范围内,使用户的感知质量有所改善。

关键词: P2P-TV流媒体, 滑模控制, 上行速率, 无线Mesh

Abstract: A control algorithm proposed to control the upstream rate based on sliding mode control in P2P-TV streaming media node. Through the rational design of sliding mode controller, the algorithm can adaptively control the numbers of signaling threads between neighbor pairs connected simultaneously and then control the upload rate. Further, it can achieve the fair use of resources. Due to the sliding mode control has strong robust with modeling uncertainties, time varying parameter fluctuations and external disturbances, it can avoid the system congestion under network condition change. Simulation results demonstrate that it can lead to the convergence of the queue length to the desired value quickly and maintain the oscillation small. The results also show that it can maintain the transmission delay jitter in a smaller range and improve the user perceived quality of service.

Key words: P2P-TV streaming media, sliding mode control, upload rate, wireless Mesh

中图分类号:

TP393

尹凤杰, 杨晖, 张颖. P2P-TV流媒体系统鲁棒自适应速率控制算法及仿真[J]. 系统仿真学报, 2019, 31(1): 120-126.

Yin Fengjie, Yang Hui, Zhang Ying. Robust Adaptive Rate Control Algorithm and Its Simulation for P2P-TV Streaming Media Systems[J]. Journal of System Simulation, 2019, 31(1): 120-126.

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P2P-TV流媒体系统鲁棒自适应速率控制算法及仿真

Robust Adaptive Rate Control Algorithm and Its Simulation for P2P-TV Streaming Media Systems

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