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Title

Chaos-Based Optical Communications: Encryption Versus Nonlinear Filtering

AuthorsJacobo, Adrián ; Soriano, Miguel C. ; Mirasso, Claudio R. ; Colet, Pere
KeywordsChaos
Dynamics
Nonlinear optics
Optical communications
Semiconductor lasers
Issue DateApr-2010
PublisherInstitute of Electrical and Electronics Engineers
CitationIEEE Journal of Quantum Electronics 46(4): 499-505 (2010)
AbstractSeveral 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.
Description7 pages, 8 figures.
Publisher version (URL)http://dx.doi.org/10.1109/JQE.2009.2037980
URIhttp://hdl.handle.net/10261/25716
DOI10.1109/JQE.2009.2037980
ISSN0018-9197
Appears in Collections:(IFISC) Artículos
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