Abstract：IEEE 802.16e，standard of wireless metropolitan area networks, defines the structure of Quality of Service (QoS), and divides all services into five scheduling types. But it does not define detail-scheduling algorithm of QoS. An algorithm was proposed here to schedule resources in different service types, and divide all service flows into three states: leading, synchronal and lagging. It also used two-phase extra-bandwidth allocation policy and compensation strategy according to the service flows' type and state. Simulation results indicate that the resource utilization efficiency is improved, and the fairness is guaranteed well.
2009, Vol. 29 
