Time-domain channel estimator based on cyclic correlation for OFDM systems with guard interval

doi:1005-8885 (2008) 02-0026-06

中国邮电高校学报(英文) ›› 2008, Vol. 15 ›› Issue (2): 26-31.doi: 1005-8885 (2008) 02-0026-06

Time-domain channel estimator based on cyclic correlation for OFDM systems with guard interval

贾敏，顾学迈，IM Se-bin (韩) , CHOI Hyung-jin(韩)

Communication Research Center, Harbin Institute of Technology,
Harbin 150001, China

收稿日期:2007-07-24 修回日期:1900-01-01 出版日期:2008-06-30
通讯作者: 贾敏

Time-domain channel estimator based on cyclic correlation for OFDM systems with guard interval

JIA Min, GU Xue-mai, IM Se-bin, CHOI Hyung-jin

Communication Research Center, Harbin Institute of Technology,
Harbin 150001, China

Received:2007-07-24 Revised:1900-01-01 Online:2008-06-30
Contact: JIA Min

摘要/Abstract

摘要：

Channel impulse response (CIR) can be estimated on the basis of cyclic correlation in time-domain for orthogonal frequency division multiplexing (OFDM) systems. This article proposes a generalized channel estimation method to reduce the estimation error by taking the average of different CIRs. Channel impulse responses are derived according to the different starting points of cyclic correlation. In addition, an effective CIR length estimation algorithm is also presented. The whole proposed methods are more effective to OFDM systems, especially to those with longer cyclic prefix. The analysis and the simulation results verify that the mean square error performance is 45 dB better than the conventional schemes under the same conditions.

关键词:

CIR,;OFDM,;channel;estimation,;mean;square;error;(MSE)

Abstract:

Key words:

CIR;OFDM;channel estimation;mean square error (MSE)

中图分类号:

TN929.05

JIA Min, GU Xue-mai, IM Se-bin, CHOI Hyung-jin. Time-domain channel estimator based on cyclic correlation for OFDM systems with guard interval[J]. Acta Metallurgica Sinica(English letters), 2008, 15(2): 26-31.

参考文献

1. Tang Tian, Deng Gang, Jiang Jun. Estimation of time-varying channels for pilot-assisted OFDM systems. Journal of China Universities of Posts and Telecommunications, 2007, 14(2): 94-98

2. Sanzi F, Speidel J. An adaptive two-dimensional channel estimator for wireless OFDM with application to mobile DVB-T broadcasting. IEEE Transactions on Broadcasting, 2000, 46(2): 128-133

3. Edfors O, Sandell M, Van D B. Analysis of DFT-based on channel estimators for OFDM. Wireless Personal Communi- cations, 2000, 12(11): 55-70

4. Minn H, Bhargava V K. An investigation into time-domain approach for OFDM channel estimation. IEEE Transactions on Broadcasting, 2000, 46(4): 240-248

5. Wang Xiao-bin, Wu Yi-yan, Chouinard J-Y, et al. A channel characterization technique using frequency domain pilot time domain correlation method for DVB-T systems. IEEE Transactions on Consumer Electronics, 2003, 49(4): 949-957

6. Li Ming-qi, Tan Jian-guo, Zhang Wen-jun. A channel estimation method based on frequency-domain pilots and time-domain processing for OFDM systems. IEEE Transactions on Consumer Electronics, 2004, 50(4): 1049-1057

7. Wang C L, Wang H C. A low-complexity joint time synchronization and channel estimation scheme for orthogonal frequency division multiplexing systems. Proceedings of the IEEE International Conference on Communications (ICC’06): Vol 12, Jun 11-15, 2006, Istanbul, Turkey. Piscataway, NJ, USA: IEEE, 2006: 5670-5675

8. Rosa Z Y, Shan X C. Simulation models with correct statistical properties for rayleigh fading channels. IEEE Transactions on Communications, 2003, 51(6): 920-928

9. Auer G. Efficient Implementation of robust OFDM channel estimation. Proceedings of the IEEE Personal, Indoor and Mobile Radio Communications (PIMRC’05), Sep 11-14, 2005, Berlin, Germany. Piscataway, NJ, USA: IEEE, 2005: 629-633

10. Recommendation ITU-R M.1225. Guidelines for evaluation of radio transmission technology for IMT-2000. 1997

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Time-domain channel estimator based on cyclic correlation for OFDM systems with guard interval

Time-domain channel estimator based on cyclic correlation for OFDM systems with guard interval

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