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Volume 28 Issue 11
Sep.  2010
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Liu Jun-lin, Zhu Jin-kang, Qiu Ling. Two-Dimensional Channel Estimation for OFDM Systems Based on Polynomial Fitting[J]. Journal of Electronics & Information Technology, 2006, 28(11): 2077-2080.
Citation: Liu Jun-lin, Zhu Jin-kang, Qiu Ling. Two-Dimensional Channel Estimation for OFDM Systems Based on Polynomial Fitting[J]. Journal of Electronics & Information Technology, 2006, 28(11): 2077-2080.

Two-Dimensional Channel Estimation for OFDM Systems Based on Polynomial Fitting

  • Received Date: 2005-03-08
  • Rev Recd Date: 2005-08-22
  • Publish Date: 2006-11-19
  • This paper proposes a robust pilot-assisted channel estimation method for Orthogonal Frequency Division Multiplexing(OFDM) signals in Rayleigh fading. The method can be used in rectangular pilot-assisted geometry, which is more efficient than the comb pilot-assisted geometry. Comparing with the Linear Minimum Mean Square Error (LMMSE) channel estimation method, the method is simple and need not know the channel correlation and signal-to-noise (SNR). The performance is presented in terms of bit-error rate(BER) for a system using QPSK and 16QAM in fading channel.
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  • Bingham J A C. Multicarrier modulation for data transmission: an ideal whose time has come. IEEE Commun. Mug, 1990, 28(5) 5-14.[2]Zou W丫Wu丫COFDM: an overview. IEEE Trans[J].on Broadcasting.1995, 41(1):1-8[3]Sinem Coleri, Mustafa Ergen, Anuj Puri, Ahmad Bahai. Channel estimation techniques based on pilot arrangement in OFDM systems[J].IEEE Trans. on Broadcasting.2002, 48(3):223-229[4]Ove Edfors, Magnus Sandell, Jan-Jaap van de Beek, Sarah Kate Wilson, Per Ola Borjesson. OFDM channel estimation by singular value decomposition[J].IEEE Trans. on Communications.1998, 46(7):931-939[5]Minn H, Bhargava V K. an investigation into time-domain approach for OFDM channel estimation[J].IEEE Trans. on Broadcasting.2000, 46(4):240-248[6]Zheng Yuanjin. A novel channel estimation and tracking method for wireless OFDM systems based on pilots and kalman filtering[J].IEEE Trans. on Consumer Electronics.2003, 49(2):275-283[7]Chang Mingxian ,Yu Tsu. Model-based channel estimation for OFDM signals in rayleigh fading[J].IEEE Trans. on Communication.2002, 50(4):540-544[8]M J Fernandez Getino Garcia, S Zazo, J M Paez-Borrallo. Pilot patterns for channel estimation in OFDM[J].Electronics Letters.2000, 36(12):1049-1050[9]Peter Hoeher, Stefan Kaiser, Patrick Robertson. Two-Dimensional Pilot-Symbol-Aided Channel Estimation. Information Theory, 1997 IEEE International Symposium, 29 June-4 July 1997: 123
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