A blind channel estimation algorithm for an OFDM system

Shao Huaizong; Peng Qicong

Volume 25 Issue 9

Sep. 2003

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Shao Huaizong, Peng Qicong. A blind channel estimation algorithm for an OFDM system[J]. Journal of Electronics & Information Technology, 2003, 25(9): 1206-1212.

Citation:

Shao Huaizong, Peng Qicong. A blind channel estimation algorithm for an OFDM system[J]. Journal of Electronics & Information Technology, 2003, 25(9): 1206-1212.

Shao Huaizong, Peng Qicong. A blind channel estimation algorithm for an OFDM system[J]. Journal of Electronics & Information Technology, 2003, 25(9): 1206-1212.

Citation:

Shao Huaizong, Peng Qicong. A blind channel estimation algorithm for an OFDM system[J]. Journal of Electronics & Information Technology, 2003, 25(9): 1206-1212.

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A blind channel estimation algorithm for an OFDM system

Received Date: 2002-04-08
Rev Recd Date: 2002-08-29
Publish Date: 2003-09-19

Abstract

Abstract

In this paper, a blind channel estimator based on the aid of Pscudo-Pilot-Symbols (PPS) is proposed in terms of the two characters of OFDM system: the finite alphabet property of information symbols and independent property between subchannels. Unlike pilots which are used for estimation of channel and must waste some useful bandwidth, the PPSs, whose power can be boosted 3dB or 6dB to suppress efficiently the additive noise, is useful data transmitted, thus efficiency of the OFDM has been increased. Performance simulation of the proposed estimator including Mean Squares Error (MSE) of channel and uncoded Bit Error Rate(BER) have been taken, and the results show the estimator is efficient and very flexible.

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References(1)

References

R.D.J. Van Nee, G. A. A. Water, et al., New high-rate wireless LAN standards, IEEE Communications Mag., 1999, 37(12), 82-88.[2]Digital Broadcasting Systems for Television, Sound and Data Services, pr ETS 300 744 1996.[3]B. Muquet, M. de Courville, Blind and semi-blind channel identification methods using second order statistics for OFDM systems, Proc. ICASSP99, Phoenix, Arizona, U.S.A., 1999, 5, 2745-2748.[4]B. Muquet, M. de Courville, P. Duhamel, V. Buzenac, A subspace based blind and semi-blind channel identification method for OFDM systems, Second IEEE Workshop on SPQWC, 1999,170-173.[5]R.W. Heath, Jr., G. B. Giannakis, Exploiting input cyclostationarity for blind channel identification in OFDM system, IEEE Trans. on Sig. Processing, 1999, 47(3), 848-856.[6]John G. Proakis, Digital Communication, Third Edition, McGraw-Hill Publishing Corp., Chapter 14.[7]J.K. Moon, S. Chio, Performance of channel estimation methods for OFDM systems in multipath fading channels, IEEE Tran. on Consumer Electronics, 2000, 46(1), 161-170.[8]Shengli Zhou, G. B. Giannakis, A. Scaglione, Long codes for generalized FH-OFDMA through unknown multipath channels, IEEE Trans. on Communications, 2001, 49(4), 721-733.

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