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Intersymbol Decorrelating Detector for Asynchronous CDMA Systems  

Zhang Gaonan (Motorola Design Center)
Bi Guoan (School of EEE, Nanyang Technological University)
Kot Alex Chichung (School of EEE, Nanyang Technological University)
Publication Information
Journal of Communications and Networks / v.9, no.1, 2007 , pp. 28-33 More about this Journal
Abstract
Estimated channel information, especially multipath length and multipath channel of the desired user, is necessary for most previously reported linear blind multiuser detectors in code division multiple access (CDMA) systems. This paper presents a new blind intersymbol decorrelating detector in asynchronous CDMA systems, which uses the cross correlation matrix of the consecutive symbols. The proposed detector is attractive for its simplicity because no channel estimation is required except the synchronization of the desired user. Compared with other reported multiuser detectors, simulation results show that the proposed detector provides a good performance when the active users have significant intersymbol interference and the multipath length is short.
Keywords
Cross correlation matrix; decorrelating detector; intersymbol information; multiuser detection;
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1 X. Wang and H. V. Poor, 'Blind multiuser detection: A subspace approach,' IEEE Trans. Inf. Theory, vol. 44, no. 2, pp. 677-690, Mar. 1998   DOI   ScienceOn
2 J. B. Schodorf and D. B. Williams, 'Array processing techniques for multiuser detection,' IEEE Trans. Commun., vol.41, no. 11, pp. 1375-1378, Nov. 1997
3 X. Wang and H. V. Poor, 'Blind equalization and multiuser detection in dispersive CDMA channels,' IEEE Trans. Commun., vol. 46, no. 1, pp. 91103, Jan. 1998
4 M. K. Tsatsanis and Z. Xu, 'Performance analysis of minimum variance CDMA receivers,' IEEE Trans. Signal Process., vol. 46, no. 11, pp. 3014-3022, Nov. 1998   DOI   ScienceOn
5 M. Torlak and G. Xu, 'Blind multiuser channel estimation in asynchronous CDMA systems,' IEEE Trans. Signal Process., vol. 45, no. 1, pp. 137-147, Jan. 1997   DOI   ScienceOn
6 Z. Xu and M. K. Tsatsanis, 'Blind adaptive algorithms for minimum variance CDMA receivers,' IEEE Trans. Commun., vol. 49, no. 1, pp. 180-194, Jan. 2001   DOI   ScienceOn
7 M. Honig, U. Madhow, and S. Verdu, 'Blind adaptive multiuser detection,' IEEE Trans. Inf. Theory, vol. 41, no. 7, pp. 944-960, July 1995   DOI   ScienceOn
8 A. Chkeif, K. Abed-Meraim, and G. Kawas-Kaleh, 'Spatio-ternporal blind adaptive multiuser detection,' IEEE Trans. Commun., vol. 48, no. 5, pp. 729-732, May 2000   DOI   ScienceOn
9 D. Reynolds, X. Wang, and H. V. Poor, 'Blind adaptive space-time multiuser detection with multiple transmitter and receiver antennas,' IEEE Trans. Signal Process., vol. 50, no. 6, pp. 1261-1276, June 2002   DOI   ScienceOn
10 S. Verdu, Multiuser Detection. Cambridge, U.K.: Cambridge Univ. Press, 1998