Performance of Multiuser Detection for Optical CDMA—Part I: Error Probabilities

Laurie B. Nelson, H. Vincent Poor

Research output: Contribution to journalArticlepeer-review

35 Scopus citations

Abstract

Characterization of optimum multiuser performance in intensity-modulation direct-detection optical CDMA channels is addressed. Analysis is based on some simple bounds on optimum performance provided by receivers with side-information or by a linear “decorrelating” receiver. Numerical comparisons of the performance bounds are obtained via application of saddlepoint approximations to the multiuser photocount statistics. General analytical relations comparing these approximations to similar asymptotic approximations based on the Chernoff-bound are also derived. The numerical results illustrate the fundamental importance of two of the performance bounds, which are shown to be asymptotically tight in Part II of this paper. In addition, the numerical error probability results verify the relevance of the asymptotically-based performance analysis for optical CDMA in Part II.

Original languageEnglish (US)
Pages (from-to)2803-2811
Number of pages9
JournalIEEE Transactions on Communications
Volume43
Issue number11
DOIs
StatePublished - Nov 1995

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

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