An improved channel estimation with multipath search for MIMO-OFDM systems

被引：0

作者：

侯晓赟 ^{[1
,2
]}

郑宝玉 ^{[2
]}

徐友云 ^{[3
]}

宋文涛 ^{[1
]}

机构：

[1] Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai , China

[2] Department of Information Engineering, Nanjing University of Posts & Telecommunications, Nanjing , China

[3] Institute of Communication Engineering, PLA Science and Technology University, Nanjing , China

来源：

Journal of Zhejiang University Science A(Science in Engineering) | 2006年 / 02期

关键词：

Channel estimation; MIMO; OFDM; Time-delay estimation;

D O I：

暂无

中图分类号：

TN919.72 [无线数据通信];

学科分类号：

0810 ; 081001 ;

摘要：

This paper addresses the problem of channel estimation for broadband MIMO-OFDM systems. An improved channel estimator with multipath time delay detection and channel gain estimation is proposed. In the algorithm, we used the correlation of the channel taps and a well-designed adjustment scheme to increase the accuracy of the time delay detection. The most attractive advantage is that the complicated matrix calculation is replaced by search steps which can acquire the channel order and estimate the channel parameters without significantly increasing the complexity of the system. Computer simulation showed that the proposed algorithm can track the time delays adaptively and, consequently, improve the channel estimation performance.

引用

页码：149 / 155

页数：7