Noise filtering in bandlimited digital chaos-based communication systems

In recent years, many chaos-based communication schemes were proposed. However, their performance in non-ideal scenarios must be further investigated. In this work, the performance of a bandlimited binary communication system based on chaotic synchronization is evaluated considering a white Gaussian noise channel. As a way to improve the signal to noise ratio in the receiver, and thus the bit error rate, we propose to filter the out-of-band noise in the receiver. Numerical simulations show the advantages of using such a scheme.