The Long-Range Biomimetic Covert Communication Method Mimicking Large Whale
Short-range biomimetic covert communications have been developed using dolphin whistles for underwater acoustic covert communications. Due to a channel characteristics difference by range, the conventional short-range methods cannot be directly applied to long-range communications. To enable long-ra...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2022-10-01
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| Series: | Sensors |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1424-8220/22/20/8011 |
| _version_ | 1797469976396824576 |
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| author | Jongmin Ahn Deawon Do Wanjin Kim |
| author_facet | Jongmin Ahn Deawon Do Wanjin Kim |
| author_sort | Jongmin Ahn |
| collection | DOAJ |
| description | Short-range biomimetic covert communications have been developed using dolphin whistles for underwater acoustic covert communications. Due to a channel characteristics difference by range, the conventional short-range methods cannot be directly applied to long-range communications. To enable long-range biomimicking communication, overcoming the large multipath delay and a high degree of mimic (DoM) in the low-frequency band is required. This paper proposes a novel biomimetic communication method that preserves a low bit-error rate (BER) with a large DoM in the low-frequency band. For the transmission, the proposed method utilizes the time-dependent frequency change of the whistle, and its receiver obtains additional SNR gain from the multipath delay. Computer simulations and practical ocean experiments were executed to demonstrate that the BER performance of the proposed method is better than the conventional methods. For the DoM assessment, the novel machine learning-based method was utilized, and the result shows that the whistles generated by the proposed method were recognized as the actual whistle of the right humpback whale. |
| first_indexed | 2024-03-09T19:30:18Z |
| format | Article |
| id | doaj.art-f9cd3afd49ee46c7a49093b6bd1eeec3 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-09T19:30:18Z |
| publishDate | 2022-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-f9cd3afd49ee46c7a49093b6bd1eeec32023-11-24T02:30:18ZengMDPI AGSensors1424-82202022-10-012220801110.3390/s22208011The Long-Range Biomimetic Covert Communication Method Mimicking Large WhaleJongmin Ahn0Deawon Do1Wanjin Kim2Agency of Defense Development, Changwon-si 516852, KoreaAgency of Defense Development, Changwon-si 516852, KoreaAgency of Defense Development, Changwon-si 516852, KoreaShort-range biomimetic covert communications have been developed using dolphin whistles for underwater acoustic covert communications. Due to a channel characteristics difference by range, the conventional short-range methods cannot be directly applied to long-range communications. To enable long-range biomimicking communication, overcoming the large multipath delay and a high degree of mimic (DoM) in the low-frequency band is required. This paper proposes a novel biomimetic communication method that preserves a low bit-error rate (BER) with a large DoM in the low-frequency band. For the transmission, the proposed method utilizes the time-dependent frequency change of the whistle, and its receiver obtains additional SNR gain from the multipath delay. Computer simulations and practical ocean experiments were executed to demonstrate that the BER performance of the proposed method is better than the conventional methods. For the DoM assessment, the novel machine learning-based method was utilized, and the result shows that the whistles generated by the proposed method were recognized as the actual whistle of the right humpback whale.https://www.mdpi.com/1424-8220/22/20/8011underwater communicationbiomimicking communicationcovert communication |
| spellingShingle | Jongmin Ahn Deawon Do Wanjin Kim The Long-Range Biomimetic Covert Communication Method Mimicking Large Whale Sensors underwater communication biomimicking communication covert communication |
| title | The Long-Range Biomimetic Covert Communication Method Mimicking Large Whale |
| title_full | The Long-Range Biomimetic Covert Communication Method Mimicking Large Whale |
| title_fullStr | The Long-Range Biomimetic Covert Communication Method Mimicking Large Whale |
| title_full_unstemmed | The Long-Range Biomimetic Covert Communication Method Mimicking Large Whale |
| title_short | The Long-Range Biomimetic Covert Communication Method Mimicking Large Whale |
| title_sort | long range biomimetic covert communication method mimicking large whale |
| topic | underwater communication biomimicking communication covert communication |
| url | https://www.mdpi.com/1424-8220/22/20/8011 |
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