Machine Learning Based Biomimetic Underwater Covert Acoustic Communication Method Using Dolphin Whistle Contours.

Sensors (Basel)

Department of Electrical and Computer Engineering, INHA University, Incheon 22212, Korea.

Published: October 2020

AI Article Synopsis

  • The paper discusses a new method for underwater acoustic covert communications that mimics dolphin whistles more accurately than traditional methods.
  • It introduces a technique that not only preserves a high degree of mimicry (DoM) but also achieves a low bit error rate (BER) during communication.
  • Computer simulations and real ocean experiments show that the proposed method significantly improves communication reliability, achieving a BER of 0.002 compared to 0.36 for conventional methods.

Article Abstract

For underwater acoustic covert communications, biomimetic covert communications have been developed using dolphin whistles. The conventional biomimetic covert communication methods transmit slightly different signal patterns from real dolphin whistles, which results in a low degree of mimic (DoM). In this paper, we propose a novel biomimetic communication method that preserves the large DoM with a low bit error rate (BER). For the transmission, the proposed method utilizes the various contours of real dolphin whistles with the link information among consecutive whistles, and the proposed receiver uses machine learning based whistle detectors with the aid of the link information. Computer simulations and practical ocean experiments were executed to demonstrate the better BER performance of the proposed method. Ocean experiments demonstrate that the BER of the proposed method was 0.002, while the BER of the conventional Deep Neural Network (DNN) based detector showed 0.36.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7662371PMC
http://dx.doi.org/10.3390/s20216166DOI Listing

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