Performance of a novel wireless QoS proposed for broadband CDMA packet communication systems

A novel wireless QoS architecture suitable for broadband CDMA packet cellular systems is proposed and its characteristics are described. The proposed QoS architecture is composed of several control factors laid on MAC and RRC layers, and can be harmonized with IP-QoS. Two important control factors, i.e., radio condition aware admission control and resource allocation reflected hybrid scheduling, are proposed. Computer simulations and testbed experiments indicate that by using radio condition aware admission control, stable and guaranteed service can be provided to realtime users regardless of interference and location variation of the mobile station. Moreover, resource allocation reflected hybrid scheduling maintains guaranteed rates for realtime users and provides high resource utilization efficiency for best effort users. Consequently, by using the proposed wireless QoS architecture, it is possible to provide users with high quality and diversified realtime services, on a packet based radio network for 3.5G and 4G.