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Volume 26 Issue 6
Jun.  2004
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Cao Shi-ke, Zhang Li-jun. Blind Multiuser Channel Identification Based on Cyclic Complex Cepstrum[J]. Journal of Electronics & Information Technology, 2004, 26(6): 928-934.
Citation: Cao Shi-ke, Zhang Li-jun. Blind Multiuser Channel Identification Based on Cyclic Complex Cepstrum[J]. Journal of Electronics & Information Technology, 2004, 26(6): 928-934.

Blind Multiuser Channel Identification Based on Cyclic Complex Cepstrum

  • Received Date: 2002-12-17
  • Rev Recd Date: 2003-06-16
  • Publish Date: 2004-06-19
  • In this paper, a novel approach is presented for the multiuser channel identification. The approach makes use of the modulation-induced cyclostationarity and its capable of identifing individual channels of different users. By measns of the complex cepstrum of cyclic autocorrelaton, the blind estimation of the channelcan be achieved. The appraoch is rather simple, with considerable advantages. The identifiability condition and its proof are also concluded in the paper. Finally, the simulaton of identification algorithm demonstrates its convergence.
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  • Cao Shi-ke(曹士坷),Zhang Li-jun(张力军).Blind MIMO channel estimation based on modulationinduced two-cycle cyclostationarity.The Journal of China Universities of Posts and Telecommunications,2002,9(4):38-46.[2]Cao Shike(曹士坷),Zhang Lijun(张力军).Blind channel estimation for CDMA based on modulation-induced cyclostationarity,Proceedings of the International Conference on Communication Technology (ICCT2003),Beijing,April 2003:1804-1808.[3]Wang Z,Giannakis G B.Wireless multicarrier communications:where Fourier meets Shannon[J].IEEE Signal Processing Magazine.2000,17(5):29-48[4]Hatzinakos D.Nonminimum phase channel deconvolution using the complex cepstrum of the cyclic autocorrelation.IEEE Trans.on Signal Processing,1994,SP-42(11):3026-3042.[5]Hatzinakos D,Nikias C L.Estimation of multipath channel response in frequency selective channels[J].IEEE J.on Selected Areas in Communications.1989,7(1):12-19[6]Picinbono B,Bondon P.Second-order statistics of complex signals.IEEE Trans.on Signal Processing,1997,SP-45(2):411-419.[7]Giannakis G B.Cyclostationary signal analysis,Chapter in Digital Signal Processing Handbook,V.K.Madisetti,D.Williams,editors-in-chief,CRC Press,1998.[8]Pan R,Nikias C L.The complex cepstrum of higher order cumulants and nonminimum phase system identification.IEEE Trans.on Acoustics,Speech and Signal Processing,1988,ASSP36(2):186-205.
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