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Browse Journals & Magazines > Quantum Electronics, IEEE Jou ...> Volume:46 Issue:4 Help

Chaos-Based Optical Communications: Encryption Versus Nonlinear Filtering

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4 Author(s)
Jacobo, A. ; IFISC (CSIC-UIB) Inst. de Fis. Interdisicplinar y Sist. Complejos, Campus Univ. Hies Balears, Palma de Mallorca, Spain ; Soriano, M.C. ; Mirasso, C.R. ; Colet, P.

Several chaos encoding schemes codify the message in such a way that the mean value of the transmitted signal (carrier with the message) is different for bits ¿0¿ and ¿1¿. We present a nonlinear filtering method that is able to detect very small changes in the mean value of a signal and therefore recover this kind of messages if its amplitude is larger than the chaotic fluctuations in the mean over the length of a bit. We also introduce a new codification method in which the mean value of the transmitted signal, over the length of each bit, is preserved and we show how it is able to beat the decryption scheme.

Published in:
Quantum Electronics, IEEE Journal of  (Volume:46 ,  Issue: 4 )

Date of Publication: April 2010

Page(s):
499 - 505
ISSN :
0018-9197
INSPEC Accession Number:
11191344
Digital Object Identifier :
10.1109/JQE.2009.2037980
Product Type:
Journals & Magazines
Date of Current Version :
17 February 2010
Issue Date :
April 2010
Sponsored by :
IEEE Photonics Society

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