Acta Metallurgica Sinica(English letters) ›› 2012, Vol. 19 ›› Issue (4): 22-28.doi: 10.1016/S1005-8885(11)60278-1

• Networks • 上一篇    下一篇

Stability analysis in an AVQ model of Internet congestion control algorithm

詹振球1,朱杰2,徐迪1   

  1. Department of Electronic Engineering, Shanghai Jiao Tong University
  • 收稿日期:2011-12-23 修回日期:2012-03-17 出版日期:2012-08-31 发布日期:2012-09-12
  • 通讯作者: 詹振球 E-mail:zqzhan@sjtu.edu.cn
  • 基金资助:

    INTERNET网络和混沌神经网络的复杂动力学行为及其应用研究

Stability analysis in an AVQ model of Internet congestion control algorithm

  1. Department of Electronic Engineering, Shanghai Jiao Tong University
  • Received:2011-12-23 Revised:2012-03-17 Online:2012-08-31 Published:2012-09-12
  • Contact: Zhen-Qiu ZHAN E-mail:zqzhan@sjtu.edu.cn

摘要:

This paper focuses on the local stability of a classical congestion control model in the Internet, namely AVQ (Adaptive Virtual Queue) algorithm with feedback delay. Firstly, necessary and sufficient stability conditions in terms of key tuning parameters are given, which can provide exact guidelines for setting system parameters. Furthermore, by computing the rightmost characteristic root, the optimal parameter configuration for AVQ is derived, which can guarantee superior stability performance. Finally, some simulation examples are given to illustrate the correctness of the theoretical analysis.

关键词:

congestion control, AVQ, stability, time delay system

Abstract:

This paper focuses on the local stability of a classical congestion control model in the Internet, namely AVQ (Adaptive Virtual Queue) algorithm with feedback delay. Firstly, necessary and sufficient stability conditions in terms of key tuning parameters are given, which can provide exact guidelines for setting system parameters. Furthermore, by computing the rightmost characteristic root, the optimal parameter configuration for AVQ is derived, which can guarantee superior stability performance. Finally, some simulation examples are given to illustrate the correctness of the theoretical analysis.

Key words:

congestion control, AVQ, stability, time delay system

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