Results 11 to 20 of about 5,469 (282)

Design of underwater acoustic sensor communication systems based on software-defined networks in big data

open access: yesInternational Journal of Distributed Sensor Networks, 2017
The application based on big data is an important development trend of underwater acoustic sensor networks. However, traditional underwater acoustic sensor networks rely on the hardware infrastructure.
Jianping Wang, Lijuan Ma, Wei Chen
doaj   +1 more source

Game Theory-Based Cooperation for Underwater Acoustic Sensor Networks: Taxonomy, Review, Research Challenges and Directions

open access: yesSensors, 2018
Exploring and monitoring the underwater world using underwater sensors is drawing a lot of attention these days. In this field cooperation between acoustic sensor nodes has been a critical problem due to the challenging features such as acoustic channel ...
Dalhatu Muhammed   +4 more
doaj   +1 more source

Jamming-resilient algorithm for underwater cognitive acoustic networks

open access: yesInternational Journal of Distributed Sensor Networks, 2017
Due to the limit spectrum resource in the underwater acoustic networks, underwater cognitive acoustic communication is a promising technique. The channel sharing mechanism in cognitive networks can improve the communication capacity efficiently.
Zixiang Wang   +4 more
doaj   +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

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

Experimental testing of asymmetric underwater acoustic networks [PDF]

open access: yes2014 IEEE Fifth International Conference on Communications and Electronics (ICCE), 2014
om. {asilva.sjesus}@ ualg.pt Abstract-The coordinated operation of multiple vehicles within the framework of multipoint non-cabled observatories and offshore activities sprung the necessity for complex underwater acoustic networks (VANs). An example of such VAN consisting of fixed and mobile underwater nodes, was recently developed and tested at sea. A
Vilaipornsawai, U.   +2 more
openaire   +2 more sources

A mechanism of topology optimization for underwater acoustic sensor networks based on autonomous underwater vehicles

open access: yesInternational Journal of Distributed Sensor Networks, 2017
Limited energy, high mobility, and unsteady acoustic communication links render the underwater acoustic sensor networks subject to performance reduction.
Ming He   +4 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

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

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