Chaotic Cyclic Attractors Shift Keying

In this paper, an extension of the existing chaotic digital modulation named chaotic cyclic attractors shift keying (CCASK) is proposed, which uses different orders of chaotic cyclic attractors to modulate the information. The new scheme is analysed under a discrete-time domain, and the noise performance in AWGN channel is simulated, and also calculated in a mixed analytic-numerical way, under some reasonable hypothesis. As a noncoherent auto-correlation receiver, CCASK doesn´t require chaotic synchronization contrary to CSK, neither the instable threshold values contrary to COOK. Furthermore, the analysis and simulation noise performance results prove that CCASK gains 3.5 dB better noise performance than DCSK.