A space-time multi-carrier CDMA receiver with blind adaptive MAI suppression

Juinn Horng Deng*, Ta-Sung Lee

*Corresponding author for this work

Research output: Contribution to journalArticle

1 Scopus citations

Abstract

A space-time (ST) receiver is proposed for multiple access interference (MAI) and narrowband interference (NBI) suppression, and multipath diversity reception in wireless multi-carrier CDMA communications incorporating antenna arrays. The scheme involves three stages. First, an adaptive matched filter is attached to each finger at each antenna to combat the MAI. Second, an adaptive beamformer is constructed for each finger which provides effective reception of the signal of interest (SOI) and suppression of time-varying NBI. Finally, beam-former output data from different fingers are combined to capture the signal multipath components coherently. The proposed ST receiver is shown to perform reliably under strong interference, and outperform the ST MMSE receiver with pilot symbols aided channel estimation.

Original languageEnglish
Pages (from-to)1490-1498
Number of pages9
JournalIEICE Transactions on Communications
VolumeE85-B
Issue number8
StatePublished - 1 Jan 2002

Keywords

  • Adaptive beamformer
  • Adaptive matched filter
  • Multi-carrier CDMA
  • RAKE receiver

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