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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Do chaos-based communication systems really transmit chaotic signals?

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Author(s):
Candido, Renato [1] ; Soriano, Diogo C. [2] ; Silva, Magno T. M. [1] ; Eisencraft, Marcio [1]
Total Authors: 4
Affiliation:
[1] Univ Sao Paulo, BR-05508 Sao Paulo - Brazil
[2] Univ Fed ABC, Santo Andre, SP - Brazil
Total Affiliations: 2
Document type: Journal article
Source: Signal Processing; v. 108, p. 412-420, MAR 2015.
Web of Science Citations: 7
Abstract

Many communication systems based on the synchronism of chaotic systems have been proposed as an alternative spread spectrum modulation that improves the level of privacy in data transmission. However, depending on the map and on the encoding function, the transmitted signal may cease to be chaotic. Therefore, the sensitive dependence on initial conditions, which is one of the most interesting properties for employing chaos in telecommunications, may disappear. In this paper, we numerically analyze the chaotic nature of signals modulated using a system that employs the Ikeda map. Additionally, we propose changes in the communication system in order to guarantee that the modulated signals are in fact chaotic. (C) 2014 Elsevier B.V. All rights reserved. (AU)

FAPESP's process: 14/04864-2 - Spectral analysis of chaotic signals with applications in communications
Grantee:Marcio Eisencraft
Support type: Regular Research Grants
FAPESP's process: 12/24835-1 - Adaptive algorithms, combinations and applications in deconvolution
Grantee:Magno Teófilo Madeira da Silva
Support type: Regular Research Grants