A novel digital communication system using chaotic map
نویسنده
چکیده
A technique for exploiting deterministic chaos through Logistic Map (with DC component) and a Cubic Map (with no DC component) in a new digital communication has been proposed and demonstrated in presence of additive white Gaussian noise (AWGN) by Monte Carlo simulations. Biterror (BER) graphs were computed in order to compare the performance of the different modulation schemes. The best performance demonstrated, with AWGN noise, was achieved by utilizing chaotic and periodic waveforms as the information bearing components. Results show the BER performance curve implementing a Fourier Transform detection scheme is not far from the theoretical performance for Binary Phase Shift Key (BPSK) modulation.
منابع مشابه
A Secure Chaos-Based Communication Scheme in Multipath Fading Channels Using Particle Filtering
In recent years chaotic secure communication and chaos synchronization have received ever increasing attention. Unfortunately, despite the advantages of chaotic systems, Such as, noise-like correlation, easy hardware implementation, multitude of chaotic modes, flexible control of their dynamics, chaotic self-synchronization phenomena and potential communication confidence due to the very dynami...
متن کاملSecure Digital Communication using Chaotic Symbolic Dynamics
One of the major hurdles in implementing chaotic communication schemes is the synchronization of chaotic systems. For the last two decades, numerous contributions of varying successes have been made by researchers from different disciplines for the synchronization of chaotic systems. Symbolic dynamics based synchronization method is shown to be capable of providing high quality synchronization ...
متن کاملChaotic Generator in Digital Secure Communication
A chaotic orbit generated by a nonlinear system is irregular, aperiodic, unpredictable and has sensitive dependence on initial conditions. However, the chaotic trajectory is still not well enough to be a crypto system in digital secure communication. Therefore, we propose a Modified Logistic Map (MLM) and give a theoretical proof to show that the MLM is a chaotic map according to Devaney’s defi...
متن کاملSecure and Fast Chaos based Encryption System using Digital Logic Circuit
Chaotic system based message encryption system for wired and wireless networks broadly used in computer engineering, communication and network security, such as robotic systems, encryption, synchronization and genetic network. The main motive for developing the chaos based cryptosystem is to attain encryption with several compensation over the conventional encryption algorithms such as high sec...
متن کاملDigital Image Encryption Scheme using Chaotic Sequences with a Nonlinear Function
In this study, a system of encryption based on chaotic sequences is described. The system is used for encrypting digital image data for the purpose of secure image transmission. An image secure communication scheme based on Logistic map chaotic sequences with a nonlinear function is proposed in this paper. Encryption and decryption keys are obtained by one-dimensional Logistic map that generate...
متن کامل