科研成果详情

对IEEE802.16网络点对多点模式的带宽分配过程进行分析,讨论在不同可用带宽情况下WiMAX网络中各种数据流通过用户站向基站请求带宽资源的过程以及基站和用户站对网络中的不同数据流的带宽请求进行处理的情况.在此基础上,提出一种分析WiMAX网络按用户站集中分配带宽资源的马尔可夫模型.该模型使用多重队列的方式分析了基站和用户站的运行情况,提供了在不同网络配置情况下或者使用不同带宽分配算法时网络中各种数据流的阻塞概率,为分析WiMAX网络带宽资源分配过程和优化网络参数设置提供帮助. 

This paper analyzed the bandwidth allocation process of WiMAX PMP mode and discussed the bandwidth request applying process of different service flows.Since the performance of Base Station and Subscriber Station are quiet different with different configuration parameters when the available bandwidth changes,this paper promote a new accurate bandwidth allocation model with Markov chain to describe and analyze the bandwidth allocation process of GPSS(Grant Per Subscriber Station)mode of WiMAX PMP.With this model,the performance of WiMAX network and bandwidth status of Base Station and Subscriber Station in different situations can be analyzed in an easy way.Meanwhile,the blocking probability of each service flow in WiMAX PMP mode can also be achieved when different configuration parameters and bandwidth allocation scheme had been implemented.