ABSTRACT

This chapter proposes an adaptive equalization scheme for a chaos-based digital communication system. The studied system is a discrete-time version of the one proposed by Wu and Chua that has been considered for optical applications. Due to the nonlinear characteristics of the transmitters and receivers and the lack of robustness of chaos synchronization, even minor channel imperfections are enough to hinder communication. Chaos theory has been studied in several areas of Engineering including signal processing, control, and communications systems. In communications, nonlinear dynamics has potential applications in several blocks of the system, such as data compression, cryptography, and modulation. Wu and Chua’s synchronization scheme proposed in is a simple way to use chaos for communication. They addressed chaotic system synchronization differently from Pecora and Carroll’s seminal paper.