Frequency-domain analysis and design of a TCP flow controller using the AQM mechanism

Abstract

In this article, we develop an Active Queue Management (AQM) mechanism for optimizing data traffic within the router, initially, we determine a linear model of TCP network around the operating point, secondly, based on a geometric method and taking into account the communication delay, we synthesize a state feedback controller acting on the probability of packet loss. Finally, we test the validity of our approach through simulations.