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| A Subspace Method for Blind Channel Estimation in CP-free OFDM Systems
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Full
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Source |
Signal Processing: An International Journal (SPIJ) |
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Table of Contents |
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Complete Issue PDF(811.45KB) |
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Volume: 5 Issue: 1 |
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Pages: 1-18 |
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Publication
Date: March / April 2011 |
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ISSN
(Online): 1985-2339 |
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Pages |
12 - 18 |
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Author(s) |
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Published
Date |
04-04-2011 |
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Publisher |
CSC
Journals, Kuala Lumpur,
Malaysia |
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ADDITIONAL
INFORMATION |
| Keywords Abstract References Cited by Related Articles Collaborative
Colleague |
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KEYWORDS: OFDM, Channel Estimation, Dispersive Channel, Wireless Communications |
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| In this paper, a subspace method is proposed for blind channel estimation in orthogonal frequency-division multiplexing (OFDM) systems over time-dispersive channel. The proposed method does not require a cyclic prefix (CP) and thus leading to higher spectral efficiency. By exploiting the block Toeplitz structure of the channel matrix, the proposed blind estimation method performs satisfactorily with very few received OFDM blocks. Numerical simulations demonstrate the superior performance of the proposed algorithm over methods reported earlier in the literature. |
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| 1 |
Z. Wang and G. Giannakis. “Wireless Multicarrier Communications”. IEEE Signal Processing Magazine, 29-48, 2000
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R. van Nee and R. Prasad. “OFDM for Wireless Multimedia Communications”, Artech House Publishers, (2000)
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B. Muquet, M. de Courville, P. Duhamel, and V. Buenac. “Subspace based blind and semiblind channel identification method for OFDM systems”. In Proceedings of the IEEE-SP Workshop on Signal Processing Advances in Wireless Communications. Annapolis, MD, USA, 1999
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| 4 |
X. Cai and A. Akansu. “A subspace method for blind channel identification in OFDM systems”. In Proceedings of the IEEE International Conference on Communications, 2000
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| 5 |
C. Wang and Z. Zhou. “A new detection algorithm for OFDM system without cyclic prefix”. In Proceedings of the IEEE Mobile and Wireless Communications, 2004
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| 6 |
C. Lin, J. Wu and T. Lee. “GSC-based frequency-domain equalizer for Cp-free OFDM systems”. In Proceedings of the IEEE International Conference on Communications, 2005
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| 7 |
M. Teoltsch and A. Molisch. “Efficient OFDM transmission without cyclic prefix over frequency-selective channels”. In Proceedings of the IEEE PIMRC, 2000
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| 8 |
H. Xuejun and B. Houjie. “Blind channel identification and equalization in OFDM system without cyclic prefix”. In Proceedings of the International Conference on Communication Technology, 2003
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| 9 |
S. Wang and J.anton. “Blind Channel Estimation for non-CP OFDM Systems using Multiple Receive Antenna”. IEEE Signal Processing Letters, 299-302, 2009
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S. Roy and C. Li. “A Subspace Blind Channel Estimation Method for OFDM Systems without Cyclic Prefix”. IEEE Trans. Wireless Communications, 572-579, 2002
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H. Ali, J. Manton and Y. Hua. “A SOS subspace method for blind channel identification and equalization in bandwidth efficient OFDM systems based on receive antenna diversity”. In Proceedings of the IEEE Signal Processing Workshop on Statistical Signal processing, 2001
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| 12 |
J. Yu, C. Chen and M. Lee. “Blind channel estimation for SIMO OFDM systems without cyclic prefix”. In Proceedings of the International Conference on Wireless Communications, Networking and Mobile Computing, 2006
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| 13 |
J. Yu. “Channel Estimation for SIMO OFDM Systems without Cyclic Prefix”. Electronics Letters, 1369-1371, 2007
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| 14 |
H. Liu. “Signal Processing Applications in CDMS Communications”, Artech House Publishers, (2000)
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| 15 |
D. Johnson and D. Dudgeon. “Array Signal Processing: Concepts and Techniques”, Prentice Hall, (1993)
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| 16 |
G. Golub and F. Van Loan. “Matrix Computation”, The Johns Hopkins University Press, (1996)
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| Xiaodong Yue : Colleagues
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| Xuefu Zhou : Colleagues
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