Analysis and CMOS Implementation of a Chaos-Based Communication System

A Generalized BER Prediction Method for Differential Chaos Shift Keying System Through Different Communication Channels

“…Moreover, because of its accuracy and computing simplicity, this method will be helpful for engineers or researchers to evaluating and comparing the performance of chaos-based communication systems. Figure 3 presents the BER curves obtained from our BER of expression (19) based on the bit received bit energy distribution of the chaotic sequence, the Monte Carlo simulations of the DCSK system, and the BER expression based on Gaussian approximation given in (13). It clearly appears that there is an excellent match between simulations and our computed BER expression especially when the spreading factor is low.…”

“…Furthermore, the DCSK system represents a robust non-coherent scheme in which an exact knowledge of the chaotic signal at the receiver side is not required. Because of its simple structure, the DSCK system is one of the most promising chaos-based communication schemes in terms of a feasible implementation, and both the theory and the implementation of the system have indeed undergone significant research [8], [6], [13].…”

Challenges and Opportunities in Analog and Mixed Signal (AMS) Integrated Circuit (IC) Security

“…Chaos shift keying (CSK) methods have been explored for secure communication [27,28]. The communication system using chaotic modulation scheme called modified differential chaos shift keying was implemented in 0.25-μm CMOS technology [27]. Figure 4 depicts the architecture of this system.…”

“…While software applications of chaos cryptosystems are available [32], hardware implementation is provided by very few works [24,27]. The implementation of cryptomodule using analog circuitry is required to understand the proper behavior of the circuit.…”

Analysis of bus width and delay on a fully digital signum nonlinearity chaotic oscillator

“…Chaos generation has been widely explored in recent years and has been considered for securing communication systems [1] through chaos shift keying (CSK) [2], [3] and random number generation [4]- [6] designed as both fully MOS-based [7], [8] and integrated circuits [9]- [12]. Initial conditions act as encryption keys at the transmitter and the receiver to recreate the encryption scheme on both sides.…”