WiMAX系统中QoS机制研究WiMAX系统中QoS机制研究Study on QoS Mechanisms in WiMAX Systems彭木根,李茗,王文博摘要:文章分析了WiMAX系统QoS机制的主要内容:业务流管理、QoS保证算法,探讨了QoS机制对主动授权、实时查询、非实时查询和尽力而为等数据业务的支持。为了让不同业务的QoS得到保证,文章重点探讨了基于信道状态的分组调度算法(CSDPS)、基于业务类型排队(CBQ)的CSDPS调度算法和通用处理器共享策略,并给出了相应的算法模型。关键词:无线城域网;IEEE 802.16协议;媒体接入控制;服务质量;调度算法Abstract:The QoS associated with a WiMAX system mainly refers to: serviceflow management and QoS guarantee algorithm, which are analyzed first. Andthen the support of QoS for Unsolicited Grant Service (UGS), Real-TimePolling Service (rtPS), Non-Real-Time Polling Service (nrtPS), Best Effort(BE) and other data services are discussed. In order to guarantee the QoSfor multimedia services, the paper puts emphasis on the discussion ofChannel State Dependent Packet Scheduling (CSDPS) algorithm, Class BasedQueui……
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