Turbo multiuser detection for turbo-coded CDMA

Xiaodong Wang, H. Vincent Poor

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

3 Scopus citations


An iterative receiver structure is proposed for decoding multiuser information data in a turbo-coded DS-CDMA system. The receiver performs two successive soft-output decisions, achieved by a soft-input soft-output (SISO) multiuser detector and a bank of single-user SISO channel decoders, through an iterative process. At each iteration, extrinsic information is extracted from detection and decoding stages and is then used as a priori information in the next iteration, just as in turbo decoding. A low-complexity SISO multiuser detector is developed based on a novel nonlinear interference suppression technique, which makes use of both soft-interference cancellation and instantaneous linear MMSE filtering. Turbo multiuser detectors for both the simple synchronous CDMA channels and the more complex asynchronous multipath CDMA channels are developed.

Original languageEnglish (US)
Title of host publication1999 IEEE Wireless Communications and Networking Conference, WCNC
PublisherInstitute of Electrical and Electronics Engineers Inc.
Number of pages5
ISBN (Electronic)0780356683
StatePublished - Jan 1 1999
Event1st IEEE Annual Wireless Communications and Networking Conference, WCNC 1999 - New Orleans, United States
Duration: Sep 21 1999Sep 24 1999

Publication series

NameIEEE Wireless Communications and Networking Conference, WCNC
ISSN (Print)1525-3511


Other1st IEEE Annual Wireless Communications and Networking Conference, WCNC 1999
Country/TerritoryUnited States
CityNew Orleans

All Science Journal Classification (ASJC) codes

  • General Engineering


Dive into the research topics of 'Turbo multiuser detection for turbo-coded CDMA'. Together they form a unique fingerprint.

Cite this