Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/22324
Title: Permutation-based M-ary chaotic-sequence spread-spectrum communication systems
Authors: Cheong, KY
Lau, FCM 
Tse, CK 
Keywords: Chaos-based communications
M-ary modulation
Permutation
Spread-spectrum communications
Issue Date: 2003
Publisher: Birkhäuser
Source: Circuits, systems and signal processing, 2003, v. 22, no. 6, p. 567-577 How to cite?
Journal: Circuits, systems and signal processing 
Abstract: From the spectrum utilization point of view, an M-ary modulation scheme is sometimes preferred over a binary one because more data can be transmitted in the same bandwidth. In this paper, we propose an M-ary chaotic-sequence spread-spectrum modulation scheme. In this scheme, each block of chaotic sequence produced by a chaotic map undergoes a transformation before it is transmitted. At the receiver, based on the block of chaotic sequence received, the appropriate inverse transformation is performed, and the received symbol is decoded. A permutation-based transformation process is proposed, and a simple method to construct the permutations corresponding to different symbols is also presented. Coherent and noncoherent systems are investigated, and their performances are studied by computer simulations.
URI: http://hdl.handle.net/10397/22324
ISSN: 0278-081X
EISSN: 1531-5878
DOI: 10.1007/s00034-003-1018-3
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