Adaptive resource allocation scheme for uplinks in IEEE 802.16 systems

WiMAX is known as high speed network access and has a wide coverage. Although scheduling of the scarce wireless resources is important, however it has been left as an open issue for WiMAX. In this paper, we developed a heuristic approach to schedule various type of uplink traffic for IEEE802.16 while satisfying QoS requirements and providing fairness towards other services or users regardless of the physical layer condition. The proposed scheduler will aggregate minimum requirement of each type of services to avoid packet drop and distribute the remaining bandwidth using the round robin technique. Therefore this method is simple with low computational load yet manages to satisfy each user in demand. The analytical model is validated using Matlab programming to evaluate the performance of proposed method.