Results 21 to 30 of about 5,294 (265)

Simplified Scheduling for Underwater Acoustic Networks

open access: yesJournal of Networks, 2013
The acoustic propagation speed under water poses significant challenges to the design of underwater sensor networks and their medium access control protocols. Similar to the air, scheduling transmissions under water has significant impact on throughput, energy consumption, and reliability.
van Kleunen W.   +2 more
openaire   +2 more sources

Physical Layer Authentication in Underwater Acoustic Networks with Mobile Devices

open access: yes, 2022
As underwater acoustic communication technologies become mature and underwater networks evolve into reliable solutions for data communications, authenticating transmitted data turns from an option to a necessity.
Ardizzon F., Tomasin S., Casari P.
core   +1 more source

An Overview of Next-Generation Underwater Target Detection and Tracking: An Integrated Underwater Architecture

open access: yesIEEE Access, 2019
Military forces of every country are trying their best to protect their motherland from the attackers. With advancement in marine technology, it has become critical to detect and track the target by obtaining active measurements before it is close enough
Huma Ghafoor, Youngtae Noh
doaj   +1 more source

Through-Ice Acoustic Source Tracking Using Vision Transformers with Ordinal Classification

open access: yesSensors, 2022
Ice environments pose challenges for conventional underwater acoustic localization techniques due to their multipath and non-linear nature. In this paper, we compare different deep learning networks, such as Transformers, Convolutional Neural Networks ...
Steven Whitaker   +3 more
doaj   +1 more source

A hybrid routing protocol for underwater acoustic networks [PDF]

open access: yes2018 17th Annual Mediterranean Ad Hoc Networking Workshop (Med-Hoc-Net), 2018
—This paper presents a new packet-forwarding mechanism for underwater acoustic networks. The solution, termed MPR-Light, combines the modus operandi of the Multi-Point Relay (MPR) protocol and of the Enhanced Flooding (EFlood), both described in [1]. MPR-Light aims at providing the ro-bustness of a flooding solution in the presence of unreliable and ...
Roberto Petroccia, João Alves 0002
openaire   +2 more sources

SPACNet: A Simulation Platform of an Acoustic Cognitive Network

open access: yesJournal of Marine Science and Engineering, 2023
Originating from the concept of cognitive networks (CNs), which are becoming popular in wireless terrestrial communication scenarios, underwater acoustic cognitive networks (UACNs) are drawing more and more attention in the field of the Internet of ...
Xiaoyu Yang   +5 more
doaj   +1 more source

Model for Underwater Acoustic Target Recognition with Attention Mechanism Based on Residual Concatenate

open access: yesJournal of Marine Science and Engineering, 2023
Underwater acoustic target recognition remains a formidable challenge in underwater acoustic signal processing. Current target recognition approaches within underwater acoustic frameworks predominantly rely on acoustic image target recognition models ...
Zhe Chen   +3 more
doaj   +1 more source

A Double Rate Localization Algorithm with One Anchor for Multi-Hop Underwater Acoustic Networks. [PDF]

open access: yesSensors (Basel), 2017
Localization is a basic issue for underwater acoustic networks (UANs). Currently, most localization algorithms only perform well in one-hop networks or need more anchors which are not suitable for the underwater environment.
Gao J, Shen X, Zhao R, Mei H, Wang H.
europepmc   +2 more sources

The Control Packet Collision Avoidance Algorithm for the Underwater Multichannel MAC Protocols via Time-Frequency Masking

open access: yesDiscrete Dynamics in Nature and Society, 2016
Establishing high-speed and reliable underwater acoustic networks among multiunmanned underwater vehicles (UUVs) is basic to realize cooperative and intelligent control among different UUVs.
Yang Yu, Jie Shi, Ke He, Peng Han
doaj   +1 more source

3D E-CRUSE: Energy-based throughput analysis of three dimensional underwater network using RF communication

open access: yesJournal of Ocean Engineering and Science, 2022
Monitoring the ocean shore continuously in real-time is essential for important applications like port security, coastal surveillance, assistance in navigation etc.
Pavan Ganesh PSS   +1 more
doaj   +1 more source

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