Results 11 to 20 of about 5,789,252 (266)
An Underwater Acoustic Network Positioning Method Based on Spatial-Temporal Self-Calibration
Sensors, 2022 The emergence of underwater acoustic networks has greatly improved the potential capabilities of marine environment detection. In underwater acoustic network applications, node location is a basic and important task, and node location information is the ...
Chao Wang +3 more
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Sensor Network Architectures for Monitoring Underwater Pipelines
Sensors, 2011 This paper develops and compares different sensor network architecture designs that can be used for monitoring underwater pipeline infrastructures. These architectures are underwater wired sensor networks, underwater acoustic wireless sensor networks, RF
Imad Jawhar +3 more
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DCN-MAC: A Dynamic Channel Negotiation MAC Mechanism for Underwater Acoustic Sensor Networks
Sensors, 2020 In the design of media access control (MAC) mechanism in underwater acoustic sensor networks (UASNs), due to the propagation characteristic of low-speed underwater acoustic signals, it is necessary to solve the spatial−temporal uncertainty problem.
Yishan Su, Lijie Dong, Qiuling Yang
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AI-Driven Adaptive Communications for Energy-Efficient Underwater Acoustic Sensor Networks
SensorsUnderwater acoustic sensor networks, crucial for marine monitoring, face significant challenges, including limited bandwidth, high delay, and severe energy constraints.
A. Ur Rehman +2 more
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Hierarchical underwater acoustic sensor networks [PDF]
Proceedings of the Fifth ACM International Workshop on UnderWater Networks - WUWNet '10, 2010 We propose a hierarchical underwater acoustic sensor network architecture in which the sensors and the collector stations operate in distinct layers. The hierarchical architecture is motivated by the property of the acoustic underwater transmission medium that for each transmission distance there exists an operating frequency for which the narrowband ...
Andrej Stefanov, Milica Stojanovic
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Applied Sciences, 2023 When marine animals and underwater acoustic sensor networks (UASNs) share spectrum resources, problems such as serious harm caused to marine animals by underwater acoustic systems and scarcity of underwater spectrum resources are encountered.
Libin Xue, Chunjie Cao
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Silent Positioning in Underwater Acoustic Sensor Networks [PDF]
IEEE Transactions on Vehicular Technology, 2008 In this paper, we present a silent positioning scheme termed UPS for underwater acoustic sensor networks. UPS relies on the time difference of arrivals locally measured at a sensor to detect range differences from the sensor to four anchor nodes. These range differences are averaged over multiple beacon intervals before they are combined to estimate ...
Xiuzhen Cheng +3 more
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Pre-scheduling Pipelined Mode MAC Protocol for Underwater Acoustic Sensor Network [PDF]
Jisuanji gongcheng, 2017 Aiming at the delay problem of MACAW protocol in underwater acoustic sensor networks,on the basis of the traditional handshake protocol,this paper proposes a new Media Access Control(MAC) protocol for underwater acoustic sensor networks.The protocol uses
LIU Guangzhong,ZHU Xiangyu
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Cooperative Authentication in Underwater Acoustic Sensor Networks [PDF]
IEEE Transactions on Wireless Communications, 2019 With the growing use of underwater acoustic communications (UWAC) for both industrial and military operations, there is a need to ensure communication security. A particular challenge is represented by underwater acoustic networks (UWANs), which are often left unattended over long periods of time. Currently, due to physical and performance limitations,
Roee Diamant +2 more
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A software-defined multi-modal wireless sensor network for ocean monitoring
International Journal of Distributed Sensor Networks, 2022 The software-defined networking paradigm enables wireless sensor networks as a programmable and reconfigurable network to improve network management and efficiency.
Hanjiang Luo +4 more
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