Results 21 to 30 of about 15,632 (239)

Sensor Network Architectures for Monitoring Underwater Pipelines

open access: yesSensors, 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
doaj   +1 more source

AMCTD: Adaptive Mobility of Courier nodes in Threshold-optimized DBR Protocol for Underwater Wireless Sensor Networks [PDF]

open access: yes, 2013
In dense underwater sensor networks (UWSN), the major confronts are high error probability, incessant variation in topology of sensor nodes, and much energy consumption for data transmission.
Ahmad, Z.   +4 more
core   +1 more source

Sensor Coverage Strategy in Underwater Wireless Sensor Networks

open access: yesINTERNATIONAL JOURNAL OF COMPUTERS COMMUNICATIONS & CONTROL, 2020
This paper mainly describes studies hydrophone placement strategy in a complex underwater environment model to compute a set of "good" locations where data sampling will be most effective. Throughout this paper it is assumed that a 3-D underwater topographic map of a workspace is given as input.Since the negative gradient direction is the fastest ...
Lu Yao, Xiujuan Du
openaire   +2 more sources

Cellular Underwater Wireless Optical CDMA Network: Potentials and Challenges [PDF]

open access: yes, 2016
Underwater wireless optical communications is an emerging solution to the expanding demand for broadband links in oceans and seas. In this paper, a cellular underwater wireless optical code division multiple-access (UW-OCDMA) network is proposed to ...
Akhoundi, Farhad   +5 more
core   +2 more sources

Underwater Sensor Network Redeployment Algorithm Based on Wolf Search

open access: yesSensors, 2016
This study addresses the optimization of node redeployment coverage in underwater wireless sensor networks. Given that nodes could easily become invalid under a poor environment and the large scale of underwater wireless sensor networks, an underwater ...
Peng Jiang, Yang Feng, Feng Wu
doaj   +1 more source

A stateless opportunistic routing protocol for underwater sensor networks [PDF]

open access: yes, 2018
Routing packets in Underwater Sensor Networks (UWSNs) face different challenges, the most notable of which is perhaps how to deal with void communication areas.
Boutaleb, Tuleen   +2 more
core   +1 more source

Addressing the Directionality Challenge through RSSI-Based Multilateration Technique, to Localize Nodes in Underwater WSNs by Using Magneto-Inductive Communication

open access: yesJournal of Marine Science and Engineering, 2022
The deployment and efficient use of wireless sensor networks (WSNs) in underwater and underground environments persists to be a difficult task.
Gang Qiao   +5 more
doaj   +1 more source

Re-Evaluation of RF Electromagnetic Communication in Underwater Sensor Networks [PDF]

open access: yes, 2010
Most underwater wireless networks use acoustic waves as the transmission medium nowadays, but the chances of getting much more out of acoustic modems are quite remote. Optical links are impractical for many underwater applications.
Gordon Dickers   +4 more
core   +1 more source

Sensor Hop-based Energy Efficient Networking Approach for Routing in Underwater Acoustic Communication

open access: yesJournal of Telecommunications and Information Technology, 2017
Underwater Wireless Sensor Networks are deployed to explore the world under the water, measure different parameters and communicate the data to the surface, in the widespread applications.
Sheena Kohli
doaj   +1 more source

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