Design a PID controller for active queue management

被引：60

作者：

Fan, YF ^{[1
]}

Ren, FY ^{[1
]}

Lin, C ^{[1
]}

机构：

[1] Tsing Hua Univ, Comp Sci & Technol Dept, Beijing 100084, Peoples R China

来源：

EIGHTH IEEE INTERNATIONAL SYMPOSIUM ON COMPUTERS AND COMMUNICATION, VOLS I AND II, PROCEEDINGS | 2003年

关键词：

AQM; PID controller; delay; stability margin;

D O I：

10.1109/ISCC.2003.1214244

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

As an enhancement mechanism for the end-to-end congestion control, Active Queue Management (AQM) can keep smaller queuing delay and higher throughput by purposefully dropping the packets at the intermediate nodes. Comparing with RED algorithm, although the PI (Proportional-Integral) controller for AQM designed by C.Hollot improves the stability, the transient performance of the PI controller is not perfect, such as the regulating time is too long. In order to overcome this drawback, in this paper, the PID (Proportional-Integral-Differential) controller is proposed to speed up the responsiveness of AQM system. The controller parameters are tuned based on the determined gain and phase margins. The simulation results show that the integrated performance of the PID controller is obviously superior to that of the PI controller.

引用

页码：985 / 990

页数：6

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