Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/712
Title: Generalized correlation-delay-shift-keying scheme for noncoherent chaos-based communication systems
Authors: Tam, WM
Lau, FCM 
Tse, CKM 
Keywords: Chaos communications
Correlation-delay-shift-keying
Noncoherent communications
Issue Date: Mar-2006
Publisher: IEEE
Source: IEEE transactions on circuits and systems. I, Regular papers, Mar. 2006, v. 53, no. 3, p. 712-721 How to cite?
Journal: IEEE transactions on circuits and systems. I, Regular papers 
Abstract: In this paper, we propose a generalized correlationdelay-shift-keying (GCDSK) scheme for noncoherent chaos-based communications. In the proposed scheme, several delayed versions of a chaotic signal are first produced. Some of them will be modulated by the binary data to be transmitted. The delayed signals will then be added to the original chaotic signal and transmitted. At the receiver, a simple correlator-type detector is employed to decode the binary symbols. The approximate bit error rate (BER) of the GCDSK scheme is derived analytically based on Gaussian approximation. Simulations are performed and compared with the noncoherent correlation-delay-shift-keying (CDSK) and differential chaos-shift-keying (DCSK) modulation schemes. The effects of the spreading factor, length of delay, and the number of delay units on the BER are fully studied. It is found that GCDSK can achieve better BER performance than DCSK under reasonable bit-energy-to-noise-power-spectral-density ratios.
URI: http://hdl.handle.net/10397/712
ISSN: 1057-7122
DOI: 10.1109/TCSI.2005.858323
Rights: © 2006 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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