Results 31 to 40 of about 29,573 (272)

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

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

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

Enhancement by postfiltering for speech and audio coding in ad hoc sensor networks [PDF]

open access: yesJASA Express Letters, 2021
Enhancement algorithms for wireless acoustic sensor networks (WASNs) are indispensable with the increasing availability and usage of connected devices with microphones.
Sneha Das, Tom Bäckström
doaj   +1 more source

Data Transmission with Reduced Delay for Distributed Acoustic Sensors

open access: yes, 2015
This paper proposes a channel access control scheme fit to dense acoustic sensor nodes in a sensor network. In the considered scenario, multiple acoustic sensor nodes within communication range of a cluster head are grouped into clusters. Acoustic sensor
Har, Dongsoo   +2 more
core   +2 more sources

Energy-aware Scheduling of Surveillance in Wireless Multimedia Sensor Networks

open access: yesSensors, 2010
Wireless sensor networks involve a large number of sensor nodes with limited energy supply, which impacts the behavior of their application. In wireless multimedia sensor networks, sensor nodes are equipped with audio and visual information collection ...
Xue Wang   +3 more
doaj   +1 more source

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

Further simulation testing in CoopMAC-U for underwater acoustic sensor networks

open access: yesJurnal Jaringan Telekomunikasi, 2023
In order for underwater wireless sensor networks to communicate more efficiently, MAC protocols are needed to control the use of acoustic channels. With the high propagation delay and the limited bandwidth available on the acoustic channel, a specially ...
Muhammad Syirajuddin S.   +4 more
doaj   +1 more source

Big Data Model Simulation on a Graph Database for Surveillance in Wireless Multimedia Sensor Networks

open access: yes, 2017
Sensors are present in various forms all around the world such as mobile phones, surveillance cameras, smart televisions, intelligent refrigerators and blood pressure monitors.
Küçükkeçeci, Cihan, Yazıcı, Adnan
core   +1 more source

Acoustic Frequency Optimization for Underwater Wireless Sensor Network [PDF]

open access: yesInternational Journal of Advanced Computer Science and Applications, 2020
In recent years, research in Underwater Wireless Sensor Network (UWSN) was the interest of many research groups as it can be used for many important applications such as disaster management, marine environment monitoring, fish farming, and military surveillance.
openaire   +1 more source

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