An approach to calculating the bit-error rate of a coherent chaos-shift-keying digital communication system under a noisy multiuser environment

W. M. Tam, Chung Ming Lau, Chi Kong Tse, M. M. Yip

Research output: Journal article publicationJournal articleAcademic researchpeer-review

43 Citations (Scopus)

Abstract

Assuming ideal synchronization at the receivers, an approach to calculating the approximate theoretical bit-error rate (BER) of a coherent chaos-shift-keying (CSK) digital communication system under an additive white Gaussian noise environment is presented. The operation of a single-user coherent CSK system is reviewed and the BER is derived. Using a simple cubic map as the chaos generator, it is demonstrated that the calculated BERs are consistent with those found from simulations. A multiuser coherent CSK system is then defined and the BER is derived in terms of the noise intensity and the number of users. Finally, the computed BERs under a multiuser environment are compared with the simulation results.
Original languageEnglish
Pages (from-to)210-223
Number of pages14
JournalIEEE Transactions on Circuits and Systems I: Fundamental Theory and Applications
Volume49
Issue number2
DOIs
Publication statusPublished - 1 Feb 2002

Keywords

  • Bit-error rate
  • Chaos communication
  • Chaos-shift-keying
  • Multiple access

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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