Iterative detection for space-time coded synchronous CDMA communication systems

Sudharman K. Jayaweera, Samuel J. MacMullan, H. Vincent Poor, Alexander Flaig

Research output: Contribution to journalArticle

8 Scopus citations

Abstract

An iterative receiver is proposed for the downlink of CDMA communication systems that employ both a convolutional channel code and a space-time trellis code to achieve transmit diversity in the presence of channel fading. The proposed iterative receiver operates by exchanging extrinsic information between the channel and space-time decoders in each iteration. Comparison of performance results, obtained via simulations, with a similar system using Alamouti space-time codes (space-time block codes) shows that the proposed turbo decoder outperforms a concatenated system consisting of channel and Alamouti codes and that the performance gap increases with fast fading.

Original languageEnglish (US)
Pages (from-to)2013-2017
Number of pages5
JournalIEEE Vehicular Technology Conference
Volume4
DOIs
StatePublished - Jan 1 2002

All Science Journal Classification (ASJC) codes

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

Keywords

  • CDMA communications
  • Iterative detection
  • Space-time coding
  • Turbo decoding

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