Underwater acoustic (UWA) communications have attracted a lot of interest in recent years motivated by a wide range of applications including offshore oil field exploration and monitoring, oceanographic data collection, environmental monitoring, disaster prevention, and port security. Different signaling solutions have been developed to date including non‐coherent communications, phase coherent systems, multi‐input and multi‐output solutions, time‐reversal‐based communication systems, and multi‐carrier transmission approaches. This paper deviates from the traditional approaches to UWA communications and develops a scheme that exploits biomimetic signals. In the proposed scheme, a transmitter maps the information bits to the parameters of a biomimetic signal, which is transmitted over the channel. The receiver estimates the parameters of the received signal and demaps them back to bits to estimate the message. As exemplary biomimetic signals, analytical signal models with nonlinear instantaneous frequency are developed that match mammal sound signatures in the time‐frequency plane are developed. Suitable receiver structures as well as performance analysis are provided for the proposed transmission scheme, and some results using data recorded during the Kauai Acomms MURI 2011 UWA communications experiment are presented. Copyright © 2016 John Wiley & Sons, Ltd.
In-Band Full-Duplex Underwater Acoustic Communication Measurements: Self-interference
The presented data contain recordings of underwater acoustic transmissions collected from a field experiment whose goal was to characterize self-interference for in-band full-duplex underwater acoustic communications. The experiment was conducted in the Lake of Tuscaloosa in July 2019. A single transmission-receiving line was deployed off a boat that was moored in the center of the lake. The transmission-receiving line had one acoustic transmitter and eight hydrophone receivers. Two types of signals, binary phase-shift keying (BPSK) and orthogonal frequency-division multiplexing (OFDM), were transmitted at the center frequency of 28 kHz. The receptions were recorded in .wav audio files by eighter high-precision digital hydrophones. In addition to the acoustic data, a complete set of source information, environmental measurements, and processed impulse responses are included in the data package. Matlab programs are also provided to retrieve the data and facilitate further analysis.
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- Award ID(s):
- 1704076
- NSF-PAR ID:
- 10357737
- Publisher / Repository:
- IEEE DataPort
- Date Published:
- Subject(s) / Keyword(s):
- ["Communications","Signal Processing","Self-interference","In-band full-duplex","underwater acoustic communications"]
- Format(s):
- Medium: X
- Sponsoring Org:
- National Science Foundation
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