Reduced-rank adaptive time-domain channel estimation for OFDM systems

被引：0

作者：

Nguyen, XH ^{[1
]}

Choi, JH ^{[1
]}

机构：

[1] Univ New S Wales, Sch Elect Engn & Telecommun, Kensington, NSW 2033, Australia

来源：

2004 9TH IEEE SINGAPORE INTERNATIONAL CONFERENCE ON COMMUNICATION SYSTEMS (ICCS) | 2004年

关键词：

OFDM; channel estimation; adaptive filtering; reduced-rank; time-domain;

D O I：

暂无

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

In this paper, we consider a reduced-rank adaptive channel estimation for Orthogonal Frequency Division Multiplexing (OFDM) systems. The pilot-aided channel estimation is rawly carried out in the time domain, which is shown to have the better performance compared to the frequency-domain estimator. The adaptive modified Least Mean Square (LMS) algorithm is then applied to further improve the estimates of the channel coefficients. In order to attain lower complexity as well as fast convergence, a reduced-rank technique is also applied to the adaptive algorithm.

引用

页码：135 / 139

页数：5

共 8 条

[1] Cheng ZL, 2002, 2002 6TH INTERNATIONAL CONFERENCE ON SIGNAL PROCESSING PROCEEDINGS, VOLS I AND II, P1340, DOI 10.1109/ICOSP.2002.1180040
[2] Choi J, 2000, 2000 IEEE 51ST VEHICULAR TECHNOLOGY CONFERENCE, PROCEEDINGS, VOLS 1-3, P400, DOI 10.1109/VETECS.2000.851487
[3] OFDM channel estimation by singular value decomposition
Edfors, O
Sandell, M
van de Beek, JJ
Wilson, SK
Borjesson, PO
[J]. IEEE TRANSACTIONS ON COMMUNICATIONS, 1998, 46 (07) : 931 - 939
[4] Reduced-rank adaptive filtering
Goldstein, JS
Reed, IS
[J]. IEEE TRANSACTIONS ON SIGNAL PROCESSING, 1997, 45 (02) : 492 - 496
[5] Haykin S., 2002, ADAPTIVE FILTER THEO
[6] HEISKALA J, 2001, OFDM WIRELESS LAN TH
[7] An investigation into time-domain approach for OFDM channel estimation
Minn, H
Bhargava, VK
[J]. IEEE TRANSACTIONS ON BROADCASTING, 2000, 46 (04) : 240 - 248
[8] Low-rank adaptive filters
Strobach, P
[J]. IEEE TRANSACTIONS ON SIGNAL PROCESSING, 1996, 44 (12) : 2932 - 2947

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