基于IEEE802.16e的MIMO-OFDM系统的信道估计  

Channel Estimation of MIMO-OFDM System Based on IEEE Standard 802.16e

作　　者：王萍[1] 朱琦[1] 阎海亮 

机构地区：[1]南京邮电大学通信与信息工程学院,江苏南京210003 [2]中国移动深圳公司,广东深圳518000

出　　处：《南京邮电大学学报（自然科学版）》2006年第4期90-94,共5页Journal of Nanjing University of Posts and Telecommunications：Natural Science Edition

基　　金：国家高技术研究发展计划(863计划)(2002AA123046);江苏省高校自然科学研究计划(05KJB510090);南京邮电大学攀登计划(NY2005013)资助项目

摘　　要：信道估计对于提高M IMO-OFDM系统的性能至关重要。既有较好的性能,又实现简单,是信道估计研究的目标。文中研究了ML-1D维纳信道估计,将其应用于IEEE 802.16 e M IMO-OFDM系统,并将其与2×1-D维纳滤波器进行了比较。仿真结果表明,此估计器能够减小计算复杂度并达到较好的性能。Channel estimation is crucial for improving the performance of MIMO-OFDM systems. Channel estimation research pursues not only good performance but also simple implementation. ML-1D Wiener channel estimation has been investigated and its application on MIMO-OFDM system based on IEEE 802.16e has also been evaluated in this paper. Compared with 2 x 1-D Wiener Filter , the results of the simulation show that ML-1D Wiener Filter has better performance and lower calculation complexity.

关 键 词：多输入多输出 正交频分复用 最大仍然 维纳滤波 信道估计 

分 类 号：TN911.23[电子电信—通信与信息系统]