Computationally efficient iterative multiuser detection and decoding

Suman Das, Elza Erkip, Behnaam Aazhang

Research output: Contribution to journalConference articlepeer-review


We describe an iterative detection and decoding scheme for the uplink in a convolutionally coded direct sequence code division multiple access (DS-CDMA) system. We consider maximum-a-posteriori (MAP) decoding and reduce the complexity through an iterative interference cancelation scheme combined with a suboptimal channel decoding algorithm. The MAP priors are updated at every iteration step. We investigate the performance of this low complexity scheme and observe that it is close to optimal.

Original languageEnglish (US)
Pages (from-to)631-634
Number of pages4
JournalConference Record of the Asilomar Conference on Signals, Systems and Computers
StatePublished - 1998
EventProceedings of the 1998 32nd Asilomar Conference on Signals, Systems & Computers. Part 1 (of 2) - Pacific Grove, CA, USA
Duration: Nov 1 1998Nov 4 1998

ASJC Scopus subject areas

  • Signal Processing
  • Computer Networks and Communications


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