Results 11 to 20 of about 3,711 (217)
Reinforcement Learning-Based Adaptive Modulation and Coding for Efficient Underwater Communications
IEEE Access, 2019 In this paper, we propose a reinforcement learning-based adaptive modulation and coding scheme for underwater communications; more specifically, based on the network states such as the quality of service requirement of the sensing message, the previous ...
Wei Su +4 more
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Recognition of behavior state of Penaeus vannamei based on passive acoustic technology
Frontiers in Marine Science, 2022 Underwater signal processing based on passive acoustic technology has carried out a lot of research on the behavioral sound of underwater creatures and the protection of marine resources, which proves the feasibility of passive acoustic technology for ...
Maochun Wei +3 more
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Underwater Communication Using Acoustic Parametric Arrays [PDF]
The 4th International Electronic Conference on Sensors and Applications, 2017 This paper presents a study of different types of parametric signals with application to submarine acoustic telecommunications. In all of them, the carrier frequency is 200 kHz, which corresponds to that resonation of the transducer under study, while they differ by the different modulations they present. In this sense, we study modulations with sweeps
Miguel Ardid +5 more
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Adaptive Underwater Acoustic Communications [PDF]
, 2010 Underwater wireless networks consist of mobile and static nodes, which usually communicate using the acoustic channel since radio transmissions attenuate rapidly and optical communication is only suitable for short distances. The underwater acoustic channel is plagued with issues of high transmission power requirements, rapidly changing channel ...
Sehgal, Anuj, Schönwälder, Jürgen
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Selective Dynamic Coded Cooperative Communications for Multi-Hop Underwater Acoustic Sensor Networks
IEEE Access, 2019 Due to the limitation of acoustic velocity in underwater environments, propagation delay is a horrible problem in multi-hop underwater acoustic sensor networks (UW-ASNs).
Yougan Chen +4 more
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The Localization Algorithm Based on Symmetry Correction for Underwater Acoustic Networks
IEEE Access, 2019 Underwater localization is an important and fundamental part of the Underwater Acoustic Networks (UANs). The problem we must face is that radio waves and optical waves are heavily attenuated underwater, so acoustic signals become the most common form of ...
Shaochen Zhang +4 more
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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
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Dianzi Jishu Yingyong, 2021 With the rapidly increasing interests in ocean observation and ocean Internet of Things, low-cost underwater acoustic communication equipment draws more and more attention from the research community.
Li Shuang, Qiu Yifan, Tong Feng
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The Influence of MAC Protocol on a Non-Synchronous Localization Scheme in Large-Scale UWSNs
IEEE Access, 2018 Localization plays a more and more important role in underwater wireless sensor networks (UWSNs). But in the large-scale UWSNs, the localization algorithm can’t be realized for the continuous packet collision.
Keyu Chen +4 more
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Underwater acoustic multiplexing communication by pentamode metasurface [PDF]
Journal of Physics D: Applied Physics, 2021 Abstract As the dominant information carrier in water, the acoustic wave is widely used for underwater detection, communication and imaging. Even though underwater acoustic communication has been greatly improved in the past decades, it still suffers from slow transmission speeds and low information capacity.
Zhaoyong Sun +6 more
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