Results 21 to 30 of about 3,620 (223)
IEEE Access, 2023 In-band full-duplex (IBFD) communications is a promising technique to achieve spectral-efficient communication in the underwater environment. To achieve IBFD underwater communications, suppression of self-interference (SI) is a prerequisite.
Zheng Guo +4 more
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IEEE Access, 2022 Mobile underwater acoustic communication technology has been widely employed in marine measurement and offshore engineering. The irregular relative motion between the transmitter and receiver causes time-varying Doppler shifts, which can cause severe ...
Peibin Zhu +4 more
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Covert underwater acoustic communications
The Journal of the Acoustical Society of America, 2010 Low probability of detection (LPD) communications are conducted at a low received signal-to-noise ratio (SNR) to deter eavesdroppers to sense the presence of the transmitted signal. Successful detection at intended receiver heavily relies on the processing gain achieved by employing the direct-sequence spread-spectrum (DSSS) technique.
Jun Ling +4 more
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Probe timing optimization for time-reversal underwater communications [PDF]
, 2011 Passive Time Reversal (pTR) is one of the variants of time reversal applicable to digital underwater communications. In passive time reversal a probe-signal is transmitted ahead of the data-signal in order to estimate the channel impulse response for ...
S. M. Jesus +6 more
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Channel Emulator Framework for Underwater Acoustic Communications
Applied Sciences, 2023 In this paper, we develop a tractable mathematical model and an emulation framework for communicating information through water using acoustic signals.
Indrakshi Dey, Nicola Marchetti
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An overview of channel coding for underwater acoustic communications [PDF]
MILCOM 2012 - 2012 IEEE Military Communications Conference, 2012 The TRIDENT (TRansmission d'Images et de Donnees EN Temps reeel) project was launched a few years ago by GESMA (Groupe d'Etudes Sous Marine de l'Atlantique). The initial objectives were to develop a multiple-rate underwater acoustic link for images, text and data transmission. Later, the speech option was added, and more recently channel coding options
Trubuil, Joël +2 more
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Research on Co-Channel Interference Cancellation for Underwater Acoustic MIMO Communications
Remote Sensing, 2022 Multiple-input–multiple-output (MIMO) communication systems utilize multiple transmitters to send different pieces of information in parallel. This offers a promising way to communicate at a high data rate over bandwidth-limited underwater acoustic ...
Yuehai Zhou, Feng Tong, Xiaoyu Yang
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Multi-node processing for asymmetrical communications in underwater acoustic networks [PDF]
, 2009 Underwater acoustic communication networks have attracted attention for its applications in many areas such as mine warfare, rapid environmental assessment or search and rescue, where there is the need for conserted action of a group of observers ...
Silva, A. +5 more
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Exploring the Parametric Effect in Nonlinear Acoustic Waves
IEEE Access, 2023 Nonlinear acoustics is a critical area of study with practical applications in fields such as underwater communications, medical imaging, non-destructive testing, and sonar.
Maria Campo-Valera +4 more
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Nibble-CRC for Underwater Acoustic Communication [PDF]
, 2012 Underwater acoustic sensor networks (UWASNs) are complex in design due to the characteristics of underwater medium. The underwater communication environment and the medium vary on time, geographical location and depth. Sensor nodes are also born with some limitations such as fixed amount of energy, small size memory and node mobility.
Imtiaz Ahmed Khan +2 more
openaire +2 more sources