Context-based uplink resource allocation for ertPS service in mobile WiMAX networks

In this paper, we propose a simple and effective way to improve the uplink resource allocation for the extended-real-time polling service (ertPS) in IEEE 802.16e broadband wireless networks. Our proposed algorithm gathers statistics on the numbers of request header of medium access control layer (MAC) among various subscriber stations, and uses the information to enable a dynamic allocation of additional uplink resources to subscriber stations with continuously increasing demand upon the base stations. The simulation results show that in comparison with the original ertPS algorithm, the proposed uplink bandwidth allocation scheme is effective to improve the data throughput as well as to decrease the data packet loss rate.