Digital underwater communication with chaos

Chao Bai, Hai Peng Ren* (Corresponding Author), Murilo S. Baptista, Celso Grebogi

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

26 Citations (Scopus)


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.

Original languageEnglish
Pages (from-to)14-24
Number of pages11
JournalCommunications in Nonlinear Science and Numerical Simulation
Early online date2 Feb 2019
Publication statusPublished - 15 Jul 2019

Bibliographical note

This research is supported in part by National Natural Science Foundation of China (61172070), Innovative Research Team of Shaanxi Province (2013KCT-04), The Key Basic Research Fund of Shaanxi Province (2016-ZDJC-01), EPSRC (EP/I032606/1), Chao Bai was supported by Excellent Ph.D. research fund (310-252071603) at XAUT.


  • Chaos
  • DCSK
  • Digital communication
  • Hybrid dynamical system


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