移动WiMAX无线技术研究  

Research of Mobile WiMAX

作　　者：张玉艳[1] 孙学康[1] 李鹏[1] 

机构地区：[1]北京邮电大学网络教育学院,北京100876

出　　处：《现代电子技术》2007年第17期79-81,共3页Modern Electronics Technique

摘　　要：移动WiMAX作为移动和固定宽带网络融合的宽带无线解决方案,具有宽频无线接入技术和灵活的网络结构,在宽带移动网络的演进过程中必将发挥重要的作用。研究了移动WiMAX采用的无线技术,介绍了波束形成、空时编码和空间复用技术,分析了具有自适应MIMO转换技术的自适应智能天线系统,为了保证边缘用户的连接质量,引入了有别于传统频率复用技术的部分频率复用技术,最后简单介绍了移动WiMAX支持的多播和广播业务。Mobile WiMAX is a broadband wireless solution which enables convergence of mobile and fixed broadband networks. The scalable architecture,high data throughput and low cost deployment make mobile WiMAX a leading solution for wireless broadband services. Advanced features of mobile WiMAX is introduced in this paper. Adaptive Antenna Systems （AAS） which can significantly improve the performance are discussed. Fractional frequency reuse is implemented for edge users to assure edge- user connection quality and throughput. Multicast and broadcast service is supported by mobile WiMAX.

关 键 词：移动WIMAX OFDMA 智能天线技术 空时编码 

分 类 号：TN911[电子电信—通信与信息系统]