A Novel Bandwidth Scheduling Strategy for IEEE 802.16 Broadband Wireless Networks
WiMax system, which is defined by the IEEE 802.16 standard, also called broadband wireless metropolitan area network supports real time and non-real time services. It has not defined the packet-scheduling algorithms, which was need for the requirement of quality of service (QoS) supporting for real-time services. Generally, the service station (SS) requests for bandwidth from the base station (BS), The BS then allocates the bandwidth to SS according to priority-based request. In this paper we propose a novel bandwidth scheduling algorithm for real time polling services (rtPS), the SS estimate the arrival of rtPS packets prior to the arrival and requests the BS for bandwidth in advance, based on the SSs request and the indeed bandwidth request by past. The analytical model and simulation show that, this adaptive algorithm provided better results with respect to the number of packets waiting at SS and average delay as compared to the widely accepted weighted scheduling algorithm and Mukuls adaptive bandwidth request mechanism.
QoS Bandwidth scheduling Adaptive WiMax
Zhu Peng Zhu Guangxi Shi Haibin Lin Hongzhi
Dept. of Electronics and Information Engineering, Huazhong University of Science and Technology, Wuhan,430074, China
国际会议
上海
英文
2007-09-21（万方平台首次上网日期，不代表论文的发表时间）