Performance analysis of iterative channel estimation and multiuser detection in multipath DS-CDMA channels

Husheng Li, Sharon M. Betz, H. Vincent Poor

Research output: Contribution to journalArticlepeer-review

18 Scopus citations

Abstract

This paper examines the performance of decision- feedback-based iterative channel estimation and multiuser detection in channel coded aperiodic direct sequence code division multiple-access systems operating over multipath fading channels. First, explicit expressions describing the performance of channel estimation and parallel interference-cancellation-based multiuser detection are developed. These results are then combined to characterize the evolution of the performance of a system that iterates among channel estimation, multiuser detection and channel decoding. Sufficient conditions for convergence of this system to a unique fixed point are developed.

Original languageEnglish (US)
Pages (from-to)1981-1993
Number of pages13
JournalIEEE Transactions on Signal Processing
Volume55
Issue number5 II
DOIs
StatePublished - May 2007

All Science Journal Classification (ASJC) codes

  • Signal Processing
  • Electrical and Electronic Engineering

Keywords

  • CDMA
  • Channel estimation
  • Decision feedback
  • Multiuser detection

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