MATLAB SIMULATION OF CHAOTIC SYSTEM AND ITS APPLICATION IN SECURE COMMUNICATION WITH AWGN CHANNEL

Chaos is a complex behavior produced by internal random properties of nonlinear, deterministic dynamical systems. Recently, chaos based techniques have received a great deal of attention for the purpose of secure communication. This paper investigates, the performance of a secure communication system using cascaded-drive response synchronization in a noisy channel. Simulation results show that this method can be successfully used to recover the encrypted signal up to signal to noise ratio of 35 dB. Keywords—AWGN channel; Chaotic system; Drive-response synchronization; Secure communication

[1]  Ma Lixin.  Research on the Chaos Synchronization System Based on Critical State Control , 2008, 2008 IEEE Pacific-Asia Workshop on Computational Intelligence and Industrial Application.

[2]  Yi Zhang,et al.  Synchronization of chaotic system and its application in secure communication , 2010, 2010 International Conference on Computer Application and System Modeling (ICCASM 2010).

[3]  Edgar Sanchez-Sinencio,et al.  Lorenz-based chaotic cryptosystem: a monolithic implementation , 2000 .

[4]  Jiulun Fan,et al.  Extended logistic chaotic sequence and its performance analysis , 2007 .

[5]  Louis M. Pecora,et al.  Synchronizing chaotic circuits , 1991 .

[6]  J. Mullins.  Chaotic communication , 2006, IEEE Spectrum.