State Feedback Control AQM Algorithm Based on T-S Fuzzy Model

Considering the nonlinear characteristic of network congestion control system, a network congestion control system model is constructed using T-S fuzzy model, which can approach nonlinear system very well. A new active queue management algorithm is designed using state feedback control based on this model. The design method of proposed AQM algorithm is described in detail. The stability analysis and parameters selection are given. Simulation results show that the proposed algorithm has fast convergence speed, better stability and robustness to network loads varying. The compare with PI, PID, REM shows that the proposed algorithm has fast response speed, smaller steady state queue length variation and better robustness.