频率选择性空间相关信道下的空频均衡  

Space-Frequency Equalization in Correlated MIMO Frequency-Selective Channels

作　　者：李宝金[1] 张磊[1] 常永宇[1] 杨大成[1] 

机构地区：[1]北京邮电大学电信工程学院,北京100876

出　　处：《北京邮电大学学报》2007年第4期107-110,共4页Journal of Beijing University of Posts and Telecommunications

摘　　要：为了研究信道相关性对空频系统性能的影响,介绍了频率选择性空间相关信道的频域模型,并在此基础上分析了空频系统的频域成对差错概率.基于最小均方误差准则推导和仿真了空频均衡器的性能.分析和仿真结果表明,空频系统的性能随信道相关性的增加而下降.The model of correlated multi-input multi-output （MIMO） frequency-selective channels in frequency domain is introduced. And the pairwise error probability （PEP） of space-frequency systems is analyzed based on this model. Then, the performance of space-frequency equalizer （SFE） is derived and simulated based on minimum mean square error （MMSE）. Analysis and simulation results show that the performance of space-frequency systems degrades with the increasing of correlation.

关 键 词：频率选择性 相关信道 空频均衡 

分 类 号：TN911.5[电子电信—通信与信息系统]