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Title: Return-map-based approaches for noncoherent detection in chaotic digital communications
Authors: Tse, CKM 
Lau, FCM 
Cheong, KY
Hau, SSF 
Issue Date: Oct-2002
Source: IEEE transactions on circuits and systems. I, Fundamental theory and applications, Oct. 2002, v. 49, no. 10, p. 1495-1499
Abstract: In this brief, simple noncoherent detection methods for chaos-shift-keying (CSK) modulation are proposed. By exploiting some deterministic property of the two chaotic maps, the proposed methods recover the digital message through simple decision algorithms. Specifically, the proposed methods exploit the difference in the return maps of the signals representing the digital symbols. Two specific algorithms are discussed, namely a regression-based algorithm and a probability-based algorithm. Simple tent maps are used for illustration. The bit-error-rate under additive white Gaussian noise is studied by computer simulations.
Keywords: Chaos-based communication
Digital communication
Error probability
Least-squares regression
Noncoherent detection
Return maps
Publisher: Institute of Electrical and Electronics Engineers
Journal: IEEE transactions on circuits and systems. I, Fundamental theory and applications 
ISSN: 1057-7122
DOI: 10.1109/TCSI.2002.803357
Rights: © 2002 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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