WiMAX系统包汇聚子层分类算法研究  

Research on packet convergence sublayer classification algorithm for WiMAX system

作　　者：张青波[1,2] 何加铭[1] 朱燕[3] 

机构地区：[1]宁波大学通信技术研究所,浙江宁波315211 [2]浙江工商职业技术学院工学院,浙江宁波315012 [3]陕西安康学院电子与信息工程系,陕西安康725000

出　　处：《通信学报》2010年第12期117-122,130,共7页Journal on Communications

基　　金：国家科技重大专项基金资助项目(2011ZX03002-004-02);国家自然科学基金资助项目(60671037);科技部国际合作基金资助项目(2009DFA12120)~~

摘　　要：分析了WiMAX系统高层协议数据单元与连接之间的映射关系,提出了一种基于无冲突散列和地址分块异或查找的包汇聚子层分类算法,实现高层协议数据单元的快速查找分类,并对算法复杂度和增量更新功能进行了量化分析。仿真结果表明,提出的算法在时延和内存空间性能上满足了系统对QoS的要求,而且实时性也有较大的提高。The mapping relation between the higher-layer protocol data and connection was analyzed in WiMAX system. And a packet convergence sublayer classification algorithm based on non-collision hashing and address-blocking XOR look-up was proposed, thus realized the quick look-up and classification of higher-layer protocol data. The complexity and the increase renewal function of algorithm was analyzed quantitatively. The simulation results show that the classifi- cation algorithm satisfies QoS （quality of service） requests with the performances of delay and memory, moreover time- liness is also enhanced greatly.

关 键 词：WIMAX系统 包汇聚子层 分类 查找 

分 类 号：TN915[电子电信—通信与信息系统]