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.
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)
