A turbo multiuser receiver for receive diversity CDMA systems over flat Rayleigh fading channel

Jia Shen*, Alister G. Burr

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this paper we consider an uplink CDMA system employing multiuser detection to suppress multiple access interference (MAI) at the base station. An iterative Parallel Interference Cancellation (PIC) multiuser receiver structure utilizing the Minimum Mean-Squared Error (MMSE) detection as its first stage is used, including Turbo decoders. We use this structure on a slow, flat Rayleigh fading channel, as well as the AWGN channel, but find that its performance is relatively poor, limited by the single user bound. Accordingly we here develop an improved Turbo multiuser receiver that can be used in systems with multiple receive antennas. The simulation results demonstrate that this diversity technique allows the Turbo PIC receiver to recover its ability to enhance the system performance, even in the presence of severe multipath fading.

Original languageEnglish
Title of host publication13th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2002
Pages26-30
Number of pages5
DOIs
Publication statusPublished - 2002
Event13th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2002 - Lisboa, Portugal
Duration: 15 Sept 200218 Sept 2002

Publication series

NameIEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC
Volume1

Conference

Conference13th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2002
Country/TerritoryPortugal
CityLisboa
Period15/09/0218/09/02

Keywords

  • CDMA
  • Diversity
  • Multiuser detection
  • Turbocodes

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