Large system analysis of linear multistage parallel interference cancellation

Louis G F Trichard*, Jamie S. Evans, Iain B. Collings

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

42 Citations (Scopus)

Abstract

In this paper, we derive an expression for the signal to interference-plus-noise ratio of a linear multistage parallel interference cancellation receiver. We focus on a linear multistage receiver which converges to the linear minimum mean-squared error receiver as the number of stages increases. The signal to interference-plus-noise ratio is given in terms of the system loading, the partial cancellation factor, the number of stages, and the signal-to-noise ratio. Our expression also allows a simple approximation for the bit error rate at each stage. Finally, we perform a numerical optimization to maximize the signal to interference-plus-noise ratio expression with respect to the partial cancellation factor of the resulting linear multistage receiver.

Original languageEnglish
Pages (from-to)1778-1786
Number of pages9
JournalIEEE Transactions on Communications
Volume50
Issue number11
DOIs
Publication statusPublished - Nov 2002
Externally publishedYes

Keywords

  • Large system analysis
  • Linear minimum mean-squared error
  • Multiuser detection
  • Parallel interference cancellation
  • Random spreading

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