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Chaos-Based Optical Communications: Encryption Versus Nonlinear Filtering

AutorJacobo, Adrián ; Soriano, Miguel C.; Mirasso, Claudio R. ; Colet, Pere
Palabras claveChaos
Nonlinear optics
Optical communications
Semiconductor lasers
Fecha de publicaciónabr-2010
EditorInstitute of Electrical and Electronics Engineers
CitaciónIEEE Journal of Quantum Electronics 46(4): 499-505 (2010)
ResumenSeveral 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.
Descripción7 pages, 8 figures.
Versión del editorhttp://dx.doi.org/10.1109/JQE.2009.2037980
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