Title :
Particle Swarm Optimization based robust controller for congestion avoidance in computer networks
Author :
Qaraawy, Salih ; Ali, Hazem ; Mahmood, Ali
Author_Institution :
Control & Syst. Eng., Univ. of Technol., Baghdad, Iraq
Abstract :
This paper presents a design of a robust PI controller using Particle Swarm Optimization (PSO) method as an Active Queue Management (AQM) for congestion avoidance in computer networks. In this method the parameters of PI controller are tuned using PSO method subject to H-infinity constraints. The analytical results for linearized TCP/AQM model are presented using Matlab. The results show that a faster response time as well as the regulation of the output to a constant value by the designed controller can be achieved. Further, the designed controller provides good tracking performance under different circumstances for congestion avoidance in computer networks. Finally, a comparison with classical PI and Fuzzy PI based genetic algorithm controllers is presented.
Keywords :
H∞ control; PI control; computer network management; control system synthesis; linearisation techniques; particle swarm optimisation; queueing theory; robust control; telecommunication congestion control; transport protocols; H-infinity constraints; PSO method; active queue management; computer networks; congestion avoidance; linearized TCP/AQM model; particle swarm optimization; robust PI controller design; tracking performance; Computer networks; Control systems; Mathematical model; Particle swarm optimization; Robustness; Sensitivity; Uncertainty; Computer networks; PSO; active queue management; robust controller; uncertain systems;
Conference_Titel :
Future Communication Networks (ICFCN), 2012 International Conference on
Conference_Location :
Baghdad
Print_ISBN :
978-1-4673-0261-6
Electronic_ISBN :
978-1-4673-0259-3
DOI :
10.1109/ICFCN.2012.6206865
