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Proceedings Paper

Designing a robust PID congestion controller supporting TCP flows based on H∞ optimal control theory
Author(s): Li Yu; Zibo Shi; Kun Chen; Yantai Shu
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Paper Abstract

A robust PID controller for active queue management (AQM) based on modern H<sub>∞</sub> optimal control theory is presented in this paper. Taken both robustness and closed loop performance into consideration, most desirable parameters value can be gotten through some straightforward analytical formulas. Our robust PID controller is determined only by one parameter, other than traditional PID controller is by three or more. Additionally, this new parameters determining method can not only be extended to other AQM controller based on classical control theory or optimal control theory, but also be easily understood and implementation. We evaluate the performances of the controller extensively. The results show that the robust PID congestion controller outperform the existing controller, such as PI, RED, on keeping the router queue size at the target value. The most obvious property of the controller is that it takes on robustness such that it can adapt the network dynamic.

Paper Details

Date Published: 10 September 2007
PDF: 9 pages
Proc. SPIE 6773, Next-Generation Communication and Sensor Networks 2007, 67730K (10 September 2007); doi: 10.1117/12.733077
Show Author Affiliations
Li Yu, Tianjin Univ. (China)
Zibo Shi, Tianjin Univ. (China)
Kun Chen, Tianjin Univ. (China)
Yantai Shu, Tianjin Univ. (China)

Published in SPIE Proceedings Vol. 6773:
Next-Generation Communication and Sensor Networks 2007
Sergey I. Balandin, Editor(s)

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