Multiuser diversity receivers for frequency-selective Rayleigh fading CDMA channels

Xiaodong Wang, H. Vincent Poor

Research output: Contribution to journalConference articlepeer-review

2 Scopus citations

Abstract

Adaptive receiver structures for coherent and differentially coherent multiuser detection with diversity combining in the frequency-selective Rayleigh fading CDMA channels are proposed. The receiver employs a recursive-least-squares (RLS) multipath MMSE filter-bank at the front-end to mitigate the multiple-access interference and the multipath interference. Two suboptimal schemes for joint channel estimation and symbol detection are developed, namely, the decision-directed symbol-by-symbol detection and the per-survivor sequence detection. A differentially coherent detection scheme is also considered. Finally, the performance of these adaptive detectors are assessed by simulations. A salient feature of the adaptive receivers proposed in this paper is that their implementations can be mapped to VLSI systolic arrays to exploit massively parallel signal processing computation.

Original languageEnglish (US)
Pages (from-to)198-202
Number of pages5
JournalIEEE Vehicular Technology Conference
Volume1
StatePublished - Jan 1 1997
EventProceedings of the 1997 47th IEEE Vehicular Technology Conference. Part 1 (of 3) - Phoenix, AZ, USA
Duration: May 4 1997May 7 1997

All Science Journal Classification (ASJC) codes

  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Applied Mathematics

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