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Open Access item Chaos-Based Optical Communications: Encryption Versus Nonlinear Filtering

Authors:Jacobo, Adrián
Soriano, Miguel C.
Mirasso, Claudio R.
Colet, Pere
Keywords:Chaos, Dynamics, Nonlinear optics, Optical communications, Semiconductor lasers
Issue Date:Apr-2010
Publisher:Institute of Electrical and Electronics Engineers
Citation:IEEE Journal of Quantum Electronics 46(4): 499-505 (2010)
Abstract: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.
Description:7 pages, 8 figures.
Publisher version (URL):http://dx.doi.org/10.1109/JQE.2009.2037980
Appears in Collections:(IFISC) Artículos

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