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Digital Information Transmission using Discrete Chaotic Signal
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Author(s): A.N. Anagnostopoulos (Aristotle University of Thessaloniki, Greece), A.N. Miliou (Aristotle University of Thessaloniki, Greece), S.G. Stavrinides (Aristotle University of Thessaloniki, Greece), A.S. Dmitriev (Kotelnikov Institute of Radio Engineering and Electronics of RAS, Russia)and E.V. Efremova (Kotelnikov Institute of Radio Engineering and Electronics of RAS, Russia)
Copyright: 2011
Pages: 24
Source title:
Chaos Synchronization and Cryptography for Secure Communications: Applications for Encryption
Source Author(s)/Editor(s): Santo Banerjee (Politecnico di Torino, Italy)
DOI: 10.4018/978-1-61520-737-4.ch019
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Abstract
In this work the authors thoroughly investigated a digital information transmission system using discrete chaotic signal over cable. As an example in their work the authors consider the non-autonomous 2nd order non-linear oscillator system presented in Tamaševicious, Cenys, Mycolaitis, and Namajunas (1998) which is particularly suitable for digital communications and present the experimental results regarding synchronization. The effect of noise (internal or external) on the synchronization of the drive-response system (unidirectional coupling between two identical systems) is analyzed and since in every practical implementation of a communication system, the transmitter and receiver circuits (although identical) operate under slightly different conditions the case of the mismatch between the parameters of the transmitter and the receiver is considered. Moreover, there is a study of the robustness of the system with reference to the desired security, proposing a more sophisticated approach, which combines the simplicity in the implementation of a chaotic system with an enhanced encoding scheme that will overall increase security.
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