A Predictive Controller for AQM Router Supporting TCP with ECN

摘要

Although the P (Proportional) or PI(Proportional-Integral) controller for active queue management improves the stability. It is no systematic method in selecting the controller parameters to guarantee the transient performance, especially in rapidly changing environment. We use Generalized Predictive Control methods to propose a controller for AQM router supporting TCP with slightly modified ECN to enhance the robustness and transient performance of the P and PI controller. The simulation results demonstrated the effectiveness of the proposed controller.