Results 21 to 30 of about 5,112,732 (131)
Shallow Water Experiment of OFDM Underwater Acoustic Communications
Archives of Acoustics, 2020 The large variability of communication properties of underwater acoustic channels, and especially the strongly varying instantaneous conditions in shallow waters, is a challenge for the designers of underwater acoustic communication (UAC) systems.
Iwona KOCHAŃSKA +2 more
doaj +1 more source
Applied Sciences, 2020 The performance of Underwater Acoustic Communication (UAC) systems are strongly related to the specific propagation conditions of the underwater channel.
Iwona Kochanska
doaj +1 more source
IET Communications, Volume 15, Issue 1, Page 60-77, 3 January 2021., 2021 Abstract In this paper, the bit error rate (BER) analyses of M‐ary offset QAM for filter bank‐based multicarrier (M‐ary OQAM/FBMC) contaminated by nonlinear distortion (NLD) are investigated over different channel scenarios, such as unshadowed line‐of‐sight (LOS) Rician K‐factor (RK‐f) fading channel, non‐line‐of‐sight (NLOS) κ−μ shadowed fading model ...
Ghanim A. Al‐Rubaye
wiley +1 more source
Characteristics of auditory brainstem response in wild yellow grouper Epinephelus awoara
Frontiers in Marine Science, 2023 Auditory brainstem response (ABR) technology is used to set up a fish auditory threshold detection system, and the auditory threshold of wild yellow grouper Epinephelus awoara caught in the Taiwan Strait is studied.
Xiangyu Zhu +7 more
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Applied Sciences, 2020 The performances of Underwater Acoustic Communication (UAC) systems are strongly related to the specific propagation conditions of the underwater channel. Designing the physical layer of a reliable data transmission system requires a knowledge of channel
Iwona Kochanska
doaj +1 more source
CPM-OFDM Performance over Underwater Acoustic Channels
Journal of Marine Science and Engineering, 2021 We propose and evaluate the performance of a continuous phase modulation based orthogonal frequency division multiplexing (CPM-OFDM) transceiver for underwater acoustic communication (UAC).
Imran A. Tasadduq +2 more
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UAN: underwater acoustic network [PDF]
, 2011 Acoustic networks are for underwater what wifi is for terrestrial networks. The ocean is a nearly perfect media for acoustic waves in which regards long range propagation but poses a number of challenges in terms of available bandwidth, Doppler spread ...
Reinen, Tor Arne +7 more
core +2 more sources
Journal of Sensors, Volume 2020, Issue 1, 2020., 2020 The severe multipath delay of the underwater acoustic channel, the Doppler shift, the severe time‐varying characteristics, and sparsity make it difficult to obtain the channel state information in the channel estimation of the virtual time‐reverse mirror OFDM, which makes the virtual time mirror subcarrier orthogonality easy to suffer damage; the ...
Yun Li +5 more
wiley +1 more source
IEEE Access, 2019 This paper focuses on the wake-up signal detection design for underwater acoustic communication (UAC) terminals. A wake-up signal detection unit can considerably reduce the power consumption of the terminals.
Deqing Wang +4 more
doaj +1 more source
Efficient On-Off Keying Underwater Acoustic Communication for Seafloor Observation Networks
Applied Sciences, 2020 In the cableless seafloor observation networks (SONs), the links among network nodes rely on underwater acoustic communication (UAC). Due to the energy constraint and the high-reliability requirement of the cableless SONs, the noncoherent UAC has been a ...
Yan Yao +4 more
doaj +1 more source