Communication systems based on chaotic synchronization are gaining interest in the area of secure and covert data transmission. In this paper, a novel digital communication technique coherent transmission approach is proposed. general, resembles well-known modulation nonlinearity parameters. The key idea study to modulate signal by varying not system parameter but symmetry coefficient discrete ...

Applications of multimedia broadcasting and mobile communication are the new generation communication networks which demands for more number of users to be serviced through the network every day. For these multiuser applications transmitted data security is very important in wireless communication network. So in this paper a methodology for the transmission of data using chaotic encryption algo...

In digital communications, fixed, chaotic, and random waveforms are used. Although the theory of fixed waveform communications is well established, its generalization to include chaotic and random carriers has not yet been carried out. The lack of an exact model prevents the optimization of chaotic and random communication systems. Introducing the Fourier analyzer concepts, this paper develops ...

This paper aims towards synchronization of Bhalekar-Gejji chaotic system and its application to secure communication. Synchronization is achieved using suitable nonlinear active control (NAC) scheme. Proposed synchronization is used to achieve secure communication using NAC. For secure communication, the information signal is masked with one of the state of chaotic system at transmitter end and...

Chaotic communication has the good secrecy. It is an important branch of the modern secure communication. Differential chaos shift keying (DCSK) communication system adopts shift keying to separate the reference signal and data signal. It has a strong resistance to the multipath channel. For FPGA systems design shortcomings using a hardware description language directly, the DCSK communication ...

We present a new technique for the chaotic communication of a signal using the concept of generalized synchronization. We develop a general approach for implementing our technique and illustrate it using a RR ossler system driving a Lorenz system. It is demonstrated that the scheme is robust with respect to noise in the communication channel and to small parameter mismatches in the system. Fina...

This paper presents a secure digital communication system based on chaotic modulation, cryptography, and chaotic synchronization techniques. The proposed system consists of a Chaotic Modulator (CM), a Chaotic Secure Transmitter (CST), a Chaotic Secure Receiver (CSR) and a Chaotic Demodulator (CDM). The CM module incorporates a chaotic system and a novel Chaotic Differential Peaks Keying (CDPK) ...

We describe the design and CMOS implementation of a baseband spread-spectrum communication system using chaotic signals for spreading digital data. The communication system uses a new chaotic modulation scheme called M-DCSK (Modified Differential Chaos Shift Keying). The M-DCSK scheme and its characteristics are analyzed for single user and multi user applications. Results from a VLSI implement...