Time-Varying Sliding Plane Design for Congestion Control in Multi-Source Connection-Oriented Communication Networks

The paper presents a new discrete time sliding mode flow control algorithm for connection-oriented communication networks. The networks are modeled as discrete time systems with the available bandwidth acting as disturbance. The algorithm employs a time-varying sliding plane, which helps reduce the initial flow rate magnitude. The plane parameters are determined so that the closed-loop system stability and fast, finite time error convergence are guaranteed. When the proposed controller is applied no bottleneck link buffer overflow and full utilization of its available bandwidth are ensured. Furthermore, transmission rates generated by the controller are always upper bounded and nonnegative.