Successive interference cancellation using stage-dependent decision functions

A. Bentrcia*, A. U. Sheikh, A. Zerguine

*Corresponding author for this work

Research output: Contribution to conferencePaperpeer-review


In this paper, we introduce the concept of stage-dependent decision functions. The latter exploit the improvement of the soft-decisions' reliability with increasing number of stages to take more hard-decisions and thus cancels more noise from stage to stage. We prove that if the stage-dependent thresholds can be optimized at each stage then the nonlinear SIC can approach the single user bound Simulation results show significant BER improvement compared to the SIC using stage-independent decision functions.

Original languageEnglish
StatePublished - 2004


  • CDMA
  • Decision functions
  • Multiuser detection
  • SIC detectors

ASJC Scopus subject areas

  • Computer Science Applications
  • Electrical and Electronic Engineering


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