基于分块设计的多用户MIMO-OFDM接收机性能分析  

Performance Analysis of Multi-user MIMO-OFDM Receiver Based on Clustering

作　　者：李亚麟[1,2] 赵昆[1] 胡波[2] 李春亭[1] 

机构地区：[1]上海贝尔股份有限公司,上海200070 [2]复旦大学,上海200433

出　　处：《邮电设计技术》2009年第6期21-24,共4页Designing Techniques of Posts and Telecommunications

基　　金：国家重大专项"新一代宽带无线移动通信网"支持项目(2008ZX03002-003)

摘　　要：为了降低OFDM宽带系统中应用MIMO技术带来的接收机复杂度,常采用基于分块的设计,即对若干相邻的时频块使用相同的信道估计结果,然而,该方法会带来性能上的损失。本文从时域角度分析了上行多用户MIMO系统中,不同的用户速度下,分块大小对接收机性能的影响,并通过仿真验证了理论分析的正确性。Clustering design is used to reduce the complexity of the receiver introduced by MIMO technology in OFDM wide-band systems. But the size of cluster will have a direct effect on the performance of the receiver. The effect is analyzed in a multi-user MIMO system with different user speeds in time domain. And the theoretical analysis is proved by simulation results.

关 键 词：分块 多用户 MIMO OFDM 

分 类 号：TN929.5[电子电信—通信与信息系统]