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Underwater acoustic communications
Proceedings of OCEANS '93, 2002The paper first attempts to provide a framework for the underwater acoustic communication system. An acoustic frequency band allocation, analogous to that used by radio engineers, is proposed. Similarly, the "shallow" channel is defined and the conditions pertaining to "high" bit rate explored.
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Signal processing for underwater acoustic communications
IEEE Communications Magazine, 2009The performance and complexity of signal processing systems for underwater acoustic communications has dramatically increased over the last two decades. With its origins in noncoherent modulation and detection for communication at rates under 100 b/s, phase-coherent digital communication systems employing multichannel adaptive equalization with ...
Andrew C. Singer +2 more
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Network-assisted underwater acoustic communications
Proceedings of the Seventh ACM International Conference on Underwater Networks and Systems - WUWNet '12, 2012For many underwater acoustic applications, the source and receiver systems carry a single transducer antenna. The lack of spatial diversity makes it difficult to carry out phase coherent communications. Using distributed nodes of an underwater acoustic network, this paper address phase coherent underwater acoustic communications using source diversity.
T. C. Yang 0001, Kevin D. Heaney
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Low Probability Detection Constrained Underwater Acoustic Communication: A Comprehensive Review
IEEE Communications MagazineThis research presents a review of low probability of detection (LPD) constrained underwater acoustic communication (UWAC). The recent surge in seabed resource exploration and overseas military operations has reignited interest in LPD CUAC.
Songzuo Liu +3 more
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Analysis of wave fluctuation on underwater acoustic communication based USV
, 2021In the scenario of UAC(Underwater Acoustic Communication) between the USV(Unmanned Surface Vehicle) and underwater node, the affection originated from sea surface random fluctuation to UAC system stability cannot be neglected due to the small size of ...
Zhichao Lv +4 more
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Modulation Techniques for Underwater Acoustic Communication: A Comprehensive Survey
IEEE AccessThe underwater acoustic channel poses a significant challenge among communication mediums due to its time-varying dynamics, long multipath propagation, and severe Doppler shifts. Ensuring reliable data transmission under these conditions demands advanced
Muhammad Haziq +4 more
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Cooperative Transmission for Underwater Acoustic Communications
2008 IEEE International Conference on Communications, 2008Underwater acoustic channels normally have low data rate, long propagation delay, severe multipath effect, and time varying fading. Cooperative transmission is a new wireless communication technique in which diversity gain is achieved by utilizing relay nodes as virtual antennae.
Han, Zhu +2 more
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UACC-GAN: A Stochastic Channel Simulator for Underwater Acoustic Communication
IEEE Journal of Oceanic EngineeringDue to the high cost of sea trials and the variability of sea states, the duration of experiments is usually too short to fully verify underwater acoustic communication (UAC) performance in a real-ocean environment.
Songzuo Liu +4 more
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Performance Analysis of Relay-Aided Satellite-Underwater Acoustic Communication Systems
IEEE Transactions on CommunicationsIn this paper, we study the performance of a cooperative underwater acoustic communication/free-space optical communication (UAC-FSO) transmission system supported by a fixed-gain amplify-and-forward (AF) relay, where an underwater source transmits ...
Liang Yang +6 more
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Bidirectional equalization for underwater acoustic communication
The Journal of the Acoustical Society of America, 2012The bidirectional decision feedback equalizer (BiDFE) that combines the outputs of a conventional decision feedback equalizer (DFE) and backward DFE can improve the performance of the conventional DFE by up to 1–2 dB based on simulations. In this letter, the BiDFE concept is extended to multichannel time reversal communications involving a DFE as a ...
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