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Robust Chaotic Communication Based on Indirect Coupling Synchronization

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Abstract

This paper proposes a chaotic communication approach using indirect coupled synchronization scheme with high power encrypted signals. The proposed scheme is carefully designed so that the encrypted signal does not deteriorate the synchronization unlike in traditional communication methods. The synchronization problem is solved using observer-based controller. The advantages of this approach are the general and systematic feedback observer design methodology suitable for convergence rate of synchronization; flexibility in selection of chaotic signals for cryptosystem secure key generator; and improvement of the frequency-domain characteristics of the transmitted message. Computer simulations show that the synchronization between the transmitter and the receiver is more robust for different amplitude values of the information signal, even in the presence of external disturbances.

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Acknowledgments

The authors would like to thank the reviewers for their useful comments and suggestions on our manuscript. This work is partially supported by the Algerian scientific research foundation ANDRU (No. D01720130025).

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Authors and Affiliations

  1. Ecole Militaire Polytechnique, Algiers, Algeria

    Abdelkader Senouci

  2. Department of Electronics, Jijel University, Ouled Aissa, BP 98 , 18000 , Jijel, Algeria

    Abdelkrim Boukabou

  3. Faculty of Engineering and Environment, Northumbria University, Newcastle upon Tyne, UK

    Krishna Busawon & Ahmed Bouridane

  4. ENSEA, 6 Avenue du Ponceau, 95014 , Cergy-Pontoise, France

    Achour Ouslimani

Authors
  1. Abdelkader Senouci
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  2. Abdelkrim Boukabou
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  3. Krishna Busawon
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  4. Ahmed Bouridane
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  5. Achour Ouslimani
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Correspondence to Abdelkrim Boukabou.

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Senouci, A., Boukabou, A., Busawon, K. et al. Robust Chaotic Communication Based on Indirect Coupling Synchronization. Circuits Syst Signal Process 34, 393–418 (2015). https://doi.org/10.1007/s00034-014-9856-8

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  • DOI: https://doi.org/10.1007/s00034-014-9856-8

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