Digital underwater communication with chaos

摘要

Recent work has shown that chaotic signals used for communication are capable of maximizing the signal to noise ratio with a simple matched filter algorithm. The present work extends that result by showing that a specially designed continuous chaotic signal and matched filter can be used to communicate digitally in wireless channels with severe physical constrains such as the underwater acoustic channel. To demonstrate this state-of-the-art applicability of chaos, we consider a broadly used Wi-Fi communication system protocol, adapted to create the differential chaos shift keying (DCSK) method, and benchmarking its performance with several current DCSK variants. Our performance analysis shows that the proposed method has reasonably better anti-interference ability, lower Bit Error Rate (BER) and similar or better bit transmission rate as compared with other existing DCSK variants. (C) 2019 Elsevier B.V. All rights reserved.