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Received: 2004-10-26

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

10.1631/jzus.2006.A0149


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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author="Hou Xiao-yun, Zheng Bao-yu, Xu You-yun, Song Wen-tao",
journal="Journal of Zhejiang University Science A",
volume="7",
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pages="149~155",
year="2006",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.2006.A0149"
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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
%V 7
%N 2
%P 149~155
%@ 1673-565X
%D 2006
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.2006.A0149

TY - JOUR
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


Abstract: 
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

Reference

[1] Beek, J.J.V.D., Edfors, O., Sandell, M., Wilson, S.K., Börjesson, P.O., 1995. On Channel Estimation in OFDM Systems. IEEE VTC’95Fall, Chicago, IL, p.815-819.

[2] Chen, R., Letaief, K.B., 2002. Channel estimation for space time coded OFDM systems in non-sample-spaced multipath channels. IEEE WCNC’02, 1:61-66.

[3] Chen, H.H., Chang, Y.N., 2003. A new pilot-added CDMA multiuser detection scheme-SCCS detector & its performance in multipath channels. IEEE ISCC’03, 2:925-929.

[4] Ebeling, C., Fisher, C., Xing, G., Shen, M., Liu, H., 2004. Implementing an OFDM receiver on the RaPiD reconfigurable architecture. IEEE Transactions on Computers, 53(11):1436-1448.

[5] Han, B., Gao, X., You, X., Costa, E., Haas, H., 2002. A novel channel estimation method for OFDM systems in multipath fading. IEEE GLOBALCOM’02, 1:696-700.

[6] Hoeher, P., Kaiser, S., Robertson, P., 1997. Two-dimensional pilot-symbol aided channel estimation by wiener filtering. IEEE ICASSP’97, 3:1845-1848.

[7] Li, Y., 2002. Simplified channel estimation for OFDM systems with multiple transmit antennas. IEEE Transactions on Wireless Communications, 1(1):67-75.

[8] Li, Y., Seshadri, N., Ariyavisitakul, S., 1999. Channel estimation for OFDM systems with transmitter diversity in mobile wireless channels. IEEE Selected Areas in Communications, 17(3):461-471.

[9] Moon, J.K., Choi, S.I., 2000. Performance of channel estimation methods for OFDM systems in a multipath fading channel. IEEE Transactions on Consumer Electronics, 46(1):161-170.

[10] Nicoli, M., Simeone, O., Spagnolini, U., 2003. Multislot estimation of fast-varying space-time communication channels. IEEE Transactions on Signal Processing, 51(5):1184-1195.

[11] Stuber, G.L., Barry, J.R., Mclaughlin, S.W., Li, Y., Ingram, M.A., Pratt, T.G., 2004. Broadband MIMO-OFDM wireless communications. Proceedings of the IEEE, 92(2):271-294.

[12] Yang, B.G., Letaief, K.B., Cheng, R.S., Cao, Z., 2001. Channel estimation for OFDM transmission in multipath fading channels based on parametric channel modeling. IEEE Transactions on Communications, 49(3):467-479.

[13] Zheng, L.Z., Tse, D.N.C., 2003. Diversity and multiplexing: a fundamental tradeoff in multiple-antenna channels. IEEE Transactions on Information Theory, 49(5):1073-1096.

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