Results 31 to 40 of about 15,304 (226)

APE-Sync: An Adaptive Power Efficient Time Synchronization for Mobile Underwater Sensor Networks

open access: yesIEEE Access, 2019
Time synchronization is a cooperative work's foundation among underwater sensor networks' nodes; it takes a crucial role in the application and the study of underwater sensor networks.
Feng Zhou   +5 more
doaj   +1 more source

Connectivity on Underwater MI-Assisted Acoustic Cooperative MIMO Networks

open access: yesSensors, 2020
In traditional underwater wireless sensor networks (UWSNs), it is difficult to establish reliable communication links as the acoustic wave experiences severe multipath effect, channel fading, and ambient noise.
Qingyan Ren   +4 more
doaj   +1 more source

A software-defined multi-modal wireless sensor network for ocean monitoring

open access: yesInternational 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
doaj   +1 more source

Underwater Wireless Sensor Networks

open access: yesJOIV: International Journal on Informatics Visualization, 2018
There are a plenty of unexploited resources that lies underwater that covers almost 75% of the earth.In order to utilise them,the field of underwater wireless sensor networks (UWSN) is attracting the  researchers to extend their thoughts in this field ...
Sweta S, Balajee Maram
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

TS-MUWSN: Time synchronization for mobile underwater sensor networks [PDF]

open access: yes, 2016
Time synchronization is an important, yet challenging, problem in underwater sensor networks (UWSNs). This challenge can be attributed to: 1) messaging timestamping; 2) node mobility; and 3) Doppler scale effect. To mitigate these problems, we present an
Bouvet, Pierre-jean   +2 more
core   +2 more sources

Joint Channel and Power Assignment for Underwater Cognitive Acoustic Networks on Marine Mammal-Friendly

open access: yesApplied 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
doaj   +1 more source

UA-MAC: An Underwater Acoustic Channel Access Method for Dense Mobile Underwater Sensor Networks

open access: yesInternational Journal of Distributed Sensor Networks, 2014
The long propagation delay and low data rate characteristics of acoustic communication attach many challenges to underwater wireless sensor networks. In this paper, a TDMA based underwater acoustic channel access method (UA-MAC) is proposed mainly to ...
Chao Lv, Shuo Wang, Min Tan, Lan Chen
doaj   +1 more source

Multimodal Acoustic-RF Adaptive Routing Protocols for Underwater Wireless Sensor Networks

open access: yesIEEE Access, 2019
In multi-function underwater wireless sensor networks (UWSNs), multiple applications share the same physical infrastructure to fully exploit network resources. Under such scenarios, diverse packets coexist in the same network which require differentiated
Hanjiang Luo   +5 more
doaj   +1 more source

ORIT: A Transport Layer Protocol Design for Underwater DTN Sensor Networks

open access: yesIEEE Access, 2019
Research challenges have focused on underwater acoustic sensor networks characterized by long propagation delay, narrow bandwidth, and frequently disconnected interruption, among others, which can be viewed as delay/disruption tolerant networks (DTNs ...
Yishan Su, Rong Fan, Zhigang Jin
doaj   +1 more source

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