"Fractional self-decorrelation" pre-processing to enhance the output SINR of single-user-type DS-CDMA detectors in blind space-time RAKE receivers for fading channels with delay spreads approaching a symbol's duration

Kainam Thomas Wong, Shun Keung Cheung

Research output: Journal article publicationConference articleAcademic researchpeer-review

1 Citation (Scopus)

Abstract

A new "fractional self-decorrelation" technique is herein proposed to enhance the multipath constructive summation capability and the 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 remove the near-far problem's error floor at high SNR. Moreover, 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 user's signature spreading codes.
Original languageEnglish
JournalICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
Volume3
Publication statusPublished - 11 Jul 2002
Externally publishedYes
Event2002 IEEE International Conference on Acoustic, Speech, and Signal Processing - Orlando, FL, United States
Duration: 13 May 200217 May 2002

ASJC Scopus subject areas

  • Software
  • Signal Processing
  • Electrical and Electronic Engineering

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