Robust QoS Control for IP-Based Cellular Networks

This paper proposes "Proactive Control and Multipath Control" to realize a robust QoS control system for IP-based cellular networks. In these networks, all kinds of traffic will share the same backbone network. This requires a QoS system that differentiates services according to the required quality. Though DiffServ is thought to be a promising technique for achieving QoS, a technique that is proof against rapid traffic changes and an effective path control scheme are not yet available. Our solution is proactive control using traffic anomaly detection and multipath control using linear optimization. Simulation results show that proactive control and multipath control improve system performance in terms of throughput and packet loss when rapid traffic change takes place.