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Received: 2004-10-26

Revision Accepted: 2005-01-13

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Journal of Zhejiang University SCIENCE A 2006 Vol.7 No.2 P.149~155


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

Author(s):  Hou Xiao-yun, Zheng Bao-yu, Xu You-yun, Song Wen-tao

Affiliation(s):  Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai 200030, China; more

Corresponding email(s):   houxiaoyun@sjtu.edu.cn

Key Words:  Channel estimation, MIMO, OFDM, Time-delay estimation

Hou Xiao-yun, Zheng Bao-yu, Xu You-yun, Song Wen-tao. An improved channel estimation with multipath search for MIMO-OFDM systems[J]. Journal of Zhejiang University Science A, 2006, 7(2): 149~155.

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journal="Journal of Zhejiang University Science A",
publisher="Zhejiang University Press & Springer",

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%T An improved channel estimation with multipath search for MIMO-OFDM systems
%A Hou Xiao-yun
%A Zheng Bao-yu
%A Xu You-yun
%A Song Wen-tao
%J Journal of Zhejiang University SCIENCE A
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%D 2006
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.2006.A0149

T1 - An improved channel estimation with multipath search for MIMO-OFDM systems
A1 - Hou Xiao-yun
A1 - Zheng Bao-yu
A1 - Xu You-yun
A1 - Song Wen-tao
J0 - Journal of Zhejiang University Science A
VL - 7
IS - 2
SP - 149
EP - 155
%@ 1673-565X
Y1 - 2006
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.2006.A0149

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.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article


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