An Adaptive Cross-Layer Scheduling Algorithm for IEEE 802.16 BWA System

作者：Li Xiuyuan^*; Wu Xiaojuan; Li Wenming; Zhang Yuanyuan

来源：3rd International Conference on Computer Science and Education, 2008-07-25 to 2008-07-27.

• Cross-Layer
• QoS
• AMC
• IEEE 802.16

Nowadays the wireless networks standard IEEE 802.16, aim to accommodate diverse QoS requirements for multimedia users. The standard define four kinds of data services, associated with QoS parameters and left the QoS scheduling algorithm undefined. In this paper, we propose a novel packet-based cross-layer scheduling algorithm for IEEE 802.16 BWA system. The proposed adaptive modulation and coding (AMC) scheme at the PHY layer accomplishes the maximize number of packets during each frame duration time while maintaining the prescribed packet error rate (PER). And we also define each kind of connections the cost function based on its service status, throughout or deadline in MAC layer. The simulation results show that our proposed scheduler can provide diverse QoS guarantees, maximum throughput and achieve an optimum tradeoff between throughput and fairness.

• 出版日期2008
• 单位山东大学