J4 ›› 2008, Vol. 30 ›› Issue (9): 22-24.
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彭亦飞[1,2] 银丽萍[2] 张英杰[1] 黄同城[3]
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摘要：
本文建立支持TCP Vegas的AQM控制器设计的非线性时滞微分模型。通过对该模型线性化，可以得到以丢包率和瓶颈路由器队列长度为输入输出的TCP Vegas／AQM系统的小信号 模型。我们采用劳斯判据，设计了满足闭环系统稳定性的PI型AQM控制器。仿真结果显示了所提方法的有效性。
关键词: TCP Vegas 主动队列管理 稳定性 劳斯判据
Abstract:
A nonlinear delayed differential equations model for designing AQM controllers in the networks supporting TCP Vegas is introduced. The model is then l inearized to derive a small signal model with the packet marking probability and the bottleneck router queue length as the input and output of the TCP V egas/AQM system. According to the Roth criterion, a PI type AQM controller is designed for the system satisfying the stability of the closed loop system. Simulation results show the proposed method is effective.
Key words: （TCP Vegas, active queue management, stability, Roth criterion）
彭亦飞[1,2] 银丽萍[2] 张英杰[1] 黄同城[3]. TCPV egas／AQM系统稳定性分析与算法设计[J]. J4, 2008, 30(9): 22-24.
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http://joces.nudt.edu.cn/CN/Y2008/V30/I9/22
