Results 51 to 60 of about 220,103 (296)

A Comprehensive Survey of Energy-Efficient MAC and Routing Protocols for Underwater Wireless Sensor Networks

open access: yesElectronics, 2022
Underwater wireless sensor networks (UWSNs) have become highly efficient in performing different operations in oceanic environments. Compared to terrestrial wireless sensor networks (TWSNs), MAC and routing protocols in UWSNs are prone to low bandwidth ...
Zahid U. Khan   +8 more
semanticscholar   +1 more source

Wireless Sensor Networks for monitoring underwater sediment transport [PDF]

open access: yesScience of The Total Environment, 2019
Monitoring of the coastline and coastal processes, in particular sediment movement, is vital to ensure that erosion response is appropriate given the dynamic nature of coastal systems. This should take place regularly over long periods and it is important that data are collected from submerged portions of the littoral zone, as well as the visible beach.
Watt, Archie   +4 more
openaire   +3 more sources

A better-performing Q-learning game-theoretic distributed routing for underwater wireless sensor networks

open access: yesInternational Journal of Distributed Sensor Networks, 2018
Underwater sensor networks have recently emerged as a promising networking technique for various underwater applications. However, the acoustic routing of underwater sensor networks in the aquatic environment presents challenges in terms of dynamic ...
Sungwook Kim
doaj   +1 more source

DE-Sync: A Doppler-Enhanced Time Synchronization for Mobile Underwater Sensor Networks

open access: yesSensors, 2018
Time synchronization is the foundation of cooperative work among nodes of underwater sensor networks; it takes a critical role in the research and application of underwater sensor networks.
Feng Zhou   +3 more
doaj   +1 more source

SOUNET: Self-Organized Underwater Wireless Sensor Network

open access: yesSensors, 2017
In this paper, we propose an underwater wireless sensor network (UWSN) named SOUNET where sensor nodes form and maintain a tree-topological network for data gathering in a self-organized manner. After network topology discovery via packet flooding, the sensor nodes consistently update their parent node to ensure the best connectivity by referring to ...
Kim, Hee-won, Cho, Ho-Shin
openaire   +4 more sources

A Comprehensive Analysis of Security-Based Schemes in Underwater Wireless Sensor Networks

open access: yesSustainability, 2023
Underwater wireless sensor networks (UWSNs) are comprised of sensor nodes that are deployed under the water having limited battery power and other limited resources.
Khalid Saeed   +6 more
semanticscholar   +1 more source

Reinforcement Learning-Based Routing Protocol for Underwater Wireless Sensor Networks: A Comparative Survey

open access: yesIEEE Access, 2021
Underwater wireless sensor networks (UWSNs) have emerged as a promising networking technology owing to their various underwater applications. Many applications require sensed data to be routed to a centralized location.
Rehenuma Tasnim Rodoshi   +2 more
doaj   +1 more source

Cooperative Authentication in Underwater Acoustic Sensor Networks [PDF]

open access: yes, 2019
With the growing use of underwater acoustic communications (UWAC) for both industrial and military operations, there is a need to ensure communication security.
Casari, Paolo   +2 more
core   +2 more sources

A Comparative Assessment of Floating and Submerged Sensor Network Deployments for Monitoring Underwater Sediment Transport Processes [PDF]

open access: yes, 2016
Wireless Sensor Networks (WSNs) are a pioneering technology in many environmental monitoring applications owing to their ability to be deployed for long periods of time in locations that cannot be reached manually.
Campbell, Carlene   +4 more
core   +1 more source

Well-Suited Similarity Functions for Data Aggregation in Cluster-Based Underwater Wireless Sensor Networks

open access: yesInternational Journal of Distributed Sensor Networks, 2013
This paper presents an efficient data aggregation approach for cluster-based underwater wireless sensor networks in order to prolong network lifetime.
Khoa Thi-Minh Tran   +2 more
doaj   +1 more source

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