哈尔滨工程大学学报Issue(2)：186-190,5.DOI:10.3969/j.issn.1006-7043.201309060
IEEE802.16网络动态自适应区分服务算法
Algorithm for IEEE802.16 network dynamic adaptive differentiated services
摘要
Abstract
Considering that IEEE802.16 MAC protocol scheduling mechanism cannot provide streaming media traffic of differentiated services, a link bandwidth adaptive allocation scheduling algorithm based on service class priority and PDA-DFPQ is proposed.The first level is scheduling between different services, using the priority strategy for quality of service, which allocates proper bandwidth for high service class, so as to ensure real-time services to the maximum delay limit requirements.The second level is scheduling of the same kind of services, using an adaptive adjustment mechanism, it dynamically sets the weight coefficients according to the queue length and the number of packets to ensure the requirements of different users for fairness and non-real time services for throughput.The sim-ulation results indicated that compared with the DRR and RED-DFPQ algorithm, the improved first level scheduling algorithm can reduce the delay and solve the real-time scheduling problem.The improved second level scheduling algorithm can balance the user rate, increase the network throughput and fairness, and thus solve sudden problems.关键词
无线网络/IEEE802.16/带宽调度/自适应/区分服务Key words
wireless networks/IEEE802.16/bandwidth scheduling/adaption/differentiated services分类
信息技术与安全科学引用本文复制引用
蒋文贤,许晓璐..IEEE802.16网络动态自适应区分服务算法[J].哈尔滨工程大学学报,2015,(2):186-190,5.基金项目
国家自然科学基金资助项目（61302094）；福建省科技计划重点资助项目（2014H0030）；泉州市科技计划重点资助项目（2014Z102）． （）
