Results 21 to 30 of about 3,084 (253)
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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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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Underwater optical wireless sensor network for real-time underwater environmental monitoring
, 2022 With the growing number of underwater vehicles and devices used for marine environmental monitoring, there is an urgent need for real-time and high-speed underwater wireless communication technologies to transmit huge amounts of data.
Ng, Tien Khee +6 more
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Engineering Proceedings, 2023 Underwater acoustic sensor networks involve deploying sensors underwater in order to establish a wireless network framework aimed at discovering new resources, detecting targets, and monitoring pollution.
Swapna Babu +5 more
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Distributed Learning for Dynamic Channel Access in Underwater Sensor Networks
Entropy, 2020 In this study, the problem of dynamic channel access in distributed underwater acoustic sensor networks (UASNs) is considered. First, we formulate the dynamic channel access problem in UASNs as a multi-agent Markov decision process, wherein each ...
Huicheol Shin +3 more
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On the Selection of Transmission Range in Underwater Acoustic Sensor Networks [PDF]
Sensors, 2012 Transmission range plays an important role in the deployment of a practical underwater acoustic sensor network (UWSN), where sensor nodes equipping with only basic functions are deployed at random locations with no particular geometrical arrangements.
Mingsheng Gao +2 more
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A Reverse Localization Scheme for Underwater Acoustic Sensor Networks [PDF]
Sensors, 2012 Underwater Wireless Sensor Networks (UWSNs) provide new opportunities to observe and predict the behavior of aquatic environments. In some applications like target tracking or disaster prevention, sensed data is meaningless without location information. In this paper, we propose a novel 3D centralized, localization scheme for mobile underwater wireless
Moradi, Marjan +2 more
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