Adaptive Multi-Class Signaling Control for Cellular Networks

In this paper, we propose a paradigm for signaling congestion control based on providing quality of service (QoS) to signaling traffic in wireless cellular networks (WCNs). An adaptive multi-class token bucket with an overflow buffer combined with priority scheduling is used to provide different grades of service to classes of signaling messages. Engineering specifically for WCNs, the signaling message congestion control is tied to the state of the traffic transport network. Simulation results are given illustrating the behavior of the new signaling overload control scheme and comparing it with existing schemes in the literature. The performance study shows that the proposed scheme can control congestion and improve performance.