Results 21 to 30 of about 3,088 (245)
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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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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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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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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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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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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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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Underwater Channel Characterization to Design Wireless Sensor Network by Bellhop [PDF]
, 2016 Acoustic underwater link due to low attenuation is employed for underwater sensor network (UWSN). Due to water changing physical properties and different environmental conditions, the sound propagation for every underwater channel are different.
Bahrami, Nima; Universiti Teknologi Malaysia +3 more
core +2 more sources
Localization with a Mobile Beacon in Underwater Acoustic Sensor Networks [PDF]
Sensors, 2012 Localization is one of the most important issues associated with underwater acoustic sensor networks, especially when sensor nodes are randomly deployed. Given that it is difficult to deploy beacon nodes at predetermined locations, localization schemes with a mobile beacon on the sea surface or along the planned path are inherently convenient, accurate,
Lee, Sangho, Kim, Kiseon
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