MIMO-OFDM系统中信道估计技术的性能评估  

Performance evaluation of the channel estimation techniques in a MIMO-OFDM system

作　　者：刘刚[1] 郭漪[1] 葛建华[1] 

机构地区：[1]西安电子科技大学综合业务网国家重点实验室,陕西西安710071

出　　处：《电路与系统学报》2005年第6期119-122,97,共5页Journal of Circuits and Systems

基　　金：863计划重大课题资助(2001AA121031);国家自然科学基金资助项目(60332030)

摘　　要：本文给出了MIMO-OFDM系统中的三种信道估计算法,详细的分析与比较了这几种算法在估计均方误差、实现复杂度、跟踪速度以及频带效率等方面的性能,最后通过MATLAB仿真试验对其进行了验证。Accurate channel state information （CSI） is required at the receiver in a space-time coded OFDM system. In this paper, several channel estimation methods for space-time coded OFDM systems are studied. A detailed analysis and comparison are made in terms of mean-squared error, complexity, tracking rate and frequency efficiency. Finally their performance is verified via MATLAB simulations.

关 键 词：空时编码 正交频分复用 信道估计 

分 类 号：TN911[电子电信—通信与信息系统]