DocumentCode :
2956939
Title :
Time-optimal controller for AQM router supporting TCP flows with small RTT
Author :
Zhang, Peng ; Ye-Chengqing ; Li-Xin ; Cheng, Yanhua
Author_Institution :
Dept. of Comput. Sci., Zhejiang Univ., Hangzhou, China
Volume :
4
fYear :
2005
fDate :
10-12 Oct. 2005
Firstpage :
3540
Abstract :
Active queue management (AQM) is an effective method to enhance congestion control, and to achieve tradeoff between link utilization and delay. Recently it has shown that the active queue management schemes implemented in the routers of communication networks supporting transmission control protocol (TCP) flows can be modeled as a feedback control system. In this paper, based on Lyapunov function we developed an optimal controller for small RTT TCP flows to improve active queue management router´s stability and response time, which are often in conflict with each other in system performance. Using ns simulations, it is shown that optimal controller outperform PI controller significantly.
Keywords :
Lyapunov methods; PI control; queueing theory; telecommunication congestion control; telecommunication network routing; time optimal control; transport protocols; Lyapunov function; PI controller; active queue management; communication networks; congestion control; feedback control system; time-optimal controller; transmission control protocol; Communication networks; Communication system control; Control systems; Delay effects; Feedback control; Lyapunov method; Optimal control; Protocols; Stability; System performance; AQM; TCP flows; optimal control;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Systems, Man and Cybernetics, 2005 IEEE International Conference on
Print_ISBN :
0-7803-9298-1
Type :
conf
DOI :
10.1109/ICSMC.2005.1571696
Filename :
1571696
Link To Document :
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