Uncovering missing symbols in communication with filtered chaotic signals

Hai-Peng Ren*, Murilo Da Silva Baptista, Celso Grebogi

*Corresponding author for this work

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

We investigate the physical modifications caused by a linear filter in a chaotic trajectory. We show that while the filter strongly modifies the topological characteristics of the chaotic signal, it might not alter its information content. We propose a chaos-based communication system that takes advantage of this fundamental characteristic of the dynamics. We devise procedures both to recover all the symbols at the receiver end and to decode the received higher-dimensional filtered chaotic signal by using techniques from the theory of pattern recognition. Our results show that a message bearing chaotic signal can be transmitted over a low bandwidth physical channel and be decoded with a low decoding bit error rate.

Original languageEnglish
Article number1250199
Number of pages11
JournalInternational Journal of Bifurcation and Chaos
Volume22
Issue number8
DOIs
Publication statusPublished - Aug 2012

Keywords

  • support vector machine
  • chaotic communication
  • topological dimension
  • synchronization
  • missing symbol
  • generating chaos
  • filter effect
  • noise
  • universal circuit
  • dynamics
  • reconstruction

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