AQM controller parameter optimization to support TCP traffic

In this paper, we make use of the best selected performance index called the integral of time multiplied by absolute error (ITAE), which is a quantitative measure to gauge the performance of a control system to achieve the minimum control error and fastest system response. By applying the ITAE performance index into a PI_PP controller for active queue management (AQM) in IP routers, we can further tune the parameters for the controller to achieve some optimum control while minimizing control errors. We have analyzed the dynamic model of the TCP congestion control under this ITAE, and used OPNET simulation tool to verify the derived optimized parameters of the controllers.