Fair resource allocation with statistical QoS support for multimedia traffic in a wideband CDMA cellular network

A dynamic fair resource allocation scheme to efficiently support realtime and nonrealtime multimedia traffic with guaranteed statistical QoS in uplinks of wideband CDMA cellular networks is proposed. The scheme uses the generalized processor sharing (GPS) fair service discipline to allocate uplink channel resources, taking into account the characteristics of channel fading and inter-cell interference. For realtime traffic, the weight of each user is assigned according to a required delay bound. For nonrealtime traffic, the weight of each traffic flow is adjusted dynamically according to fading channel states and a statistical fairness bound requirement. The capacity gain achieved by the proposed dynamic-weight scheme is analyzed for different fairness bound requirements. Simulation results are presented to demonstrate the performance of the proposed dynamic-weight scheduling scheme in terms of radio resource utilization and guaranteed statistical QoS, in comparison with the conventional static-weight scheme.