An integral sliding mode based AQM mechanism for stable queue length

Abstract

Significant research effort has been devoted to designing robust active queue management (AQM) mechanisms for the Internet, with mixed results. In this paper, we apply sliding mode control theory plus integral control to design a robust controller for AQM, which stabilizes the instantaneous queue length around the desired value with fast transient response over a wide range of network dynamics. We validate our design through extensive simulations and compare its performance with some AQM mechanisms published in the literature.