Results 41 to 50 of about 873,936 (270)

RESEARCH ON UNDERWATER COMMUNICATION AND SIMULATED ASSESSMENT OF MAIN PARAMETERS

open access: yesTạp chí Khoa học Đại học Đà Lạt, 2018
Underwater communication and its applications is a research field that has been developing rapidly, extending in many fields such as remote control in the offshore oil industry, calculating environmental pollution, transmitting voices between frogmen ...
Phan Thanh Minh, Nguyễn Ngọc Bình
doaj   +1 more source

Underwater Multirobot Cooperative Intervention MAC Protocol

open access: yesIEEE Access, 2020
This work introduces a Medium Access Control (MAC) protocol designed to allow a group of underwater robots that share a wireless communication channel to effectively communicate with each other.
Diego Centelles   +3 more
doaj   +1 more source

Weighted Multi-Band Turbo-Coded FSK for Reliable Underwater Communications

open access: yesApplied Sciences, 2022
Multi-band communication technology allocates the same data to different frequency bands, improving both performance and propagation efficiency. However, since the performance loss in a particular band affects the entire band, the multi-band structure ...
Hyun-Woo Jeong, Ji-Won Jung
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

An efficient scalable scheduling mac protocol for underwater sensor networks [PDF]

open access: yes, 2018
Underwater Sensor Networks (UWSNs) utilise acoustic waves with comparatively lower loss and longer range than those of electromagnetic waves. However, energy remains a challenging issue in addition to long latency, high bit error rate, and limited ...
Alfouzan, Faisal   +3 more
core   +1 more source

Logical Link Control and Channel Scheduling for Multichannel Underwater Sensor Networks

open access: yesEAI Endorsed Transactions on Mobile Communications and Applications, 2012
With recent developments in terrestrial wireless networks and advances in acoustic communications, multichannel technologies have been proposed to be used in underwater networks to increase data transmission rate over bandwidth-limited underwater ...
Jun Li   +3 more
doaj   +1 more source

A Natural Language Interface with Relayed Acoustic Communications for Improved Command and Control of AUVs

open access: yes, 2018
Autonomous underwater vehicles (AUVs) are being tasked with increasingly complex missions. The acoustic communications required for AUVs are, by the nature of the medium, low bandwidth while adverse environmental conditions underwater often mean they are
Garcia, Francisco J. Chiyah   +8 more
core   +1 more source

A Hierarchical Communication Architecture for Oceanic Surveillance Applications

open access: yesSensors, 2011
The interest in monitoring applications using underwater sensor networks has been growing in recent years. The severe communication restrictions imposed by underwater channels make that efficient monitoring be a challenging task. Though a lot of research
Romano Fantacci   +4 more
doaj   +1 more source

An Optical Differential Method for Underwater Wireless Communication in Turbid Environments

open access: yesPhotonics
Underwater optical communication has emerged as an essential tool for exploring oceanography and marine resources for underwater vehicles or robots in recent years.
Xiaoqing Tian   +4 more
doaj   +1 more source

AUV-Based Side-Scan Sonar Real-Time Method for Underwater-Target Detection

open access: yesJournal of Marine Science and Engineering, 2023
The limitations of underwater acoustic communications mean that the side-scan sonar data of an autonomous underwater vehicle (AUV) cannot be transmitted back and processed in real time, which means that targets cannot be detected in real time. To address
Yulin Tang   +5 more
doaj   +1 more source

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