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Title: Performance of chaos-based communication systems under the influence of coexisting conventional spread-spectrum systems
Authors: Lau, FCM 
Tse, CKM 
Keywords: Chaos communication
Chaos shift keying (CSK)
Differential chaos shift keying (DCSK)
Differential sequence spread spectrum
Issue Date: Nov-2003
Publisher: IEEE
Source: IEEE transactions on circuits and systems. I, Fundamental theory and applications, Nov. 2003, v. 50, no. 11, p. 1475-1481 How to cite?
Journal: IEEE transactions on circuits and systems. I, Fundamental theory and applications 
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.
ISSN: 1057-7122
DOI: 10.1109/TCSI.2003.818619
Rights: © 2003 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
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