Performance of Chaos-Based Communication Systems under the Influence of Coexisting Conventional Spread-Spectrum Systems

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

12 Scopus Citations
View graph of relations

Author(s)

Detail(s)

Original languageEnglish
Pages (from-to)1475-1481
Journal / PublicationIEEE Transactions on Circuits and Systems I: Fundamental Theory and Applications
Volume50
Issue number11
Publication statusPublished - Nov 2003
Externally publishedYes

Abstract

This brief studies the performance of selected chaos-based systems which share their frequency bands with conventional spread-spectrum systems. Such a scenario may occur in normal practice when chaos-based systems are introduced while the conventional systems are still in operation. The particular chaos-based systems under study are the coherent chaos-shift-keying system and the noncoherent differential chaos-shift-keying system, and the coexisting conventional system employs the standard direct-sequence spread-spectrum modulation scheme. Analytical expressions for the bit-error rates are derived in terms of system parameters such as spreading factor, chaotic signal power, conventional spread-spectrum signal power, and noise power spectral density. Finally, computer simulations are performed to verify the analytical findings.

Research Area(s)

  • Chaos communication, Chaos shift keying (CSK), Coexistence, Differential chaos shift keying (DCSK), Differential sequence spread spectrum

Citation Format(s)

Performance of Chaos-Based Communication Systems under the Influence of Coexisting Conventional Spread-Spectrum Systems. / Lau, Francis C. M.; Tse, Chi K.

In: IEEE Transactions on Circuits and Systems I: Fundamental Theory and Applications, Vol. 50, No. 11, 11.2003, p. 1475-1481.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review