A Particle Swarm Optimization Approach for Optimum Design of First-Order Controllers in TCP/AQM Network Systems

Provided by: International Journal of Computer Applications
Topic: Networking
Format: PDF
This paper proposes a Particle Swarm Optimization (PSO) method for determining the optimal parameters of a first-order controller for TCP/AQM system. The model TCP/AQM is described by a second-order system with time delay. First, the analytical approach, based on the D-decomposition method and Lemma of Kharitonov, is used to determine the stabilizing regions of a first-order controller. Second, the optimal parameters of the controller are obtained by the PSO algorithm. Finally, the proposed method is verified and compared with the PI controller using the Network Simulator, NS-2.

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