Stability analysis in an AVQ model of Internet congestion control algorithm  

作　　者：ZHAN Zhen-qiu ZHU Jie XU Di 

机构地区：[1]Department of Electronic Engineering,Shanghai Jiao Tong University,Shanghai 200240,China

出　　处：《The Journal of China Universities of Posts and Telecommunications》2012年第4期22-28,共7页中国邮电高校学报（英文版）

基　　金：supported by the National Natural Science Foundation of China (70571017)

摘　　要：This paper focuses on the local stability of a classical congestion control model in the Intemet, namely adaptive virtual queue （AVQ） 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.This paper focuses on the local stability of a classical congestion control model in the Intemet, namely adaptive virtual queue （AVQ） 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 

分 类 号：TP393.4[自动化与计算机技术—计算机应用技术] TP183[自动化与计算机技术—计算机科学与技术]