A "self-decorrelating" technique to enhance blind space-time RAKE receivers with single-user-type DS-CDMA detectors

Kainam Thomas Wong, Guisheng Liao, Shun Keung Cheung, Michael D. Zoltowski, Javier Ramos, Pak Chung Ching

Research output: Journal article publicationJournal articleAcademic researchpeer-review

4 Citations (Scopus)

Abstract

A novel "self-decorrelating" technique is herein proposed to enhance the multipath constructive summation capability and the interference rejection capability of a class of maximum-SINR blind space-time CDMA RAKE receivers designed to tackle the near-far problem. This proposed "self-decorrelating" technique appears to have effectively removed the near-far problem's error floor at high SNR; and the proposed technique can also significant decrease the error rate. 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, (2) the receiver's nominal or actual antenna array manifold, and (3) the other CDMA users' signature spreading codes. Preliminary simulations suggest very significant performance improvement realizable from the proposed technique. Though developed for direct-sequence CDMA, the proposed technique might be adopted for frequency -hopping CDMA.
Original languageEnglish
Pages (from-to)1491-1495
Number of pages5
JournalIEEE International Conference on Communications
Volume5
DOIs
Publication statusPublished - 1 Jan 2001
Externally publishedYes

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering

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