Chaotic Oscillator-Based Binary Phase-Shift Keying

Luke T. Harwood*, Paul A. Warr, Mark A. Beach

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)

2 Citations (Scopus)

Abstract

This paper presents a chaotic oscillator-based binary phase-shift keying (CO-BPSK) modulation scheme, exploiting the chaotic dynamics to achieve carrier phase inversion. A basic analytical expression is derived for the bit error-rate (BER) under additive white Gaussian noise (AWGN) channel conditions, and a baseband complex envelope simulation technique presented for two different chaotic oscillators: the Rossler attractor and the Colpitts oscillator. The proposed modulation scheme enables direct modulation of the oscillator, permits the use of conventional BPSK receiver techniques for synchronization and demodulation, and is shown to achieve competitive BER performance in an AWGN channel.

Original languageEnglish
Pages (from-to)1578-1587
Number of pages10
JournalIEEE Transactions on Circuits and Systems - I: Regular Papers
Volume61
Issue number5
DOIs
Publication statusPublished - May 2014

Keywords

  • Bit error rate
  • chaos
  • chaotic communication
  • chaotic maps
  • nonlinear circuits
  • phase-shift keying
  • COLPITTS OSCILLATOR
  • BIFURCATIONS
  • PERFORMANCE
  • RECEIVERS
  • CIRCUITS
  • SYSTEMS

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