Abstract
AbstractThis paper presents a delay-dependent robust stochastic active queue management (AQM) scheme that can be implemented in the routers for stabilizing queues in transmission control protocol (TCP) communication networks. The linearized TCP/AQM system is modelled as a uncertain time-delay system with stochastic perturbations and time-varying network parameters. In this paper, a new flow management scheme is designed analytically based on the H∞ theory. This proposed flow management scheme not only asymptotically stabilizes the queue size to the desired operating point, but also guarantees the robust stability of network against the variations in the round-trip time delay and minimize the effects of the external disturbance on the output.
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