"Fractional self-decorrelation" to enhance single-user-type DS-CDMA detectors' output SINR in blind space-time RAKE receivers

Title"Fractional self-decorrelation" to enhance single-user-type DS-CDMA detectors' output SINR in blind space-time RAKE receivers
Publication TypeJournal Article
Year of Publication2004
AuthorsWong, K. T., and S. K. Cheung
JournalIEEE Communications Letters
Volume8
Pagination336–338
ISSN1089-7798
Abstract

In this letter, a new "fractional self-decorrelation" technique is proposed to enhance the multipath-constructive-summation and interference-rejection capability of single-user-type DS-CDMA detectors at maximum-SINR blind space-time RAKE receivers, to tackle the near-far problem in wireless mobile communications. This technique can significantly decrease the error rate and can reduce the near-far problem's error floor at high SNR. This "blind" space-time processing receiver architecture needs no prior knowledge nor explicit estimation of: 1) the channel's multipath arrival angle or arrival delay or power profile-the fading channel's delay spread may be of arbitrary length, even as long as the symbol duration; 2) the receiver's nominal or actual antenna array manifold; and 3) the other DS-CDMA users' signature spreading codes.

URLhttp://dx.doi.org/10.1109/LCOMM.2004.827424
DOI10.1109/LCOMM.2004.827424

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