An Optimized QoS Traffic-Scheduling Algorithm based on HCCA

摘要：

The IEEE 802.11e defines the Hybrid Coordination Function (HCF) which specifies the QoS algorithms in the MAC layer of the WLAN. HCF Controlled Channel Access (HCCA) is based on centralized polling mechanism and provides parameterized QoS. This paper proposes an optimized traffic scheduling algorithm for variable bit rate (VBR) over HCCA, which can allocate network resource based on actual flows using dynamic service intervals and transmission opportunity. The simulation results show that the optimized scheduling algorithm can significantly improve the traffic channel utilization, throughput and packet loss ratio.

作者: Shi Shenglin Zhu Guangxi Su Gang

作者单位: Dept. of Electronics and Information Engineering, Huazhong University of Science and Technology Wuhan National Laboratory for Optoelectraonlcs Wuhan, P.R. China

会议类型: 国际会议

会议名称: International Conference on Intelligent Computation Technology and Automation(2008 智能计算技术与自动化国际会议 ICICTA 2008)

会议地点: 长沙

会议语种:英文

页码: 1520-1524

在线出版日期: 2008-10-20（万方平台首次上网日期，不代表论文的发表时间）