Results 11 to 20 of about 5,294 (265)

Energy Harvesting Hybrid Acoustic-Optical Underwater Wireless Sensor Networks Localization

open access: yesSensors, 2017
Underwater wireless technologies demand to transmit at higher data rate for ocean exploration. Currently, large coverage is achieved by acoustic sensor networks with low data rate, high cost, high latency, high power consumption, and negative impact on ...
Nasir Saeed   +3 more
doaj   +2 more sources

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   +2 more sources

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

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   +2 more sources

A Secure Communication Suite for Underwater Acoustic Sensor Networks [PDF]

open access: yesSensors, 2012
In this paper we describe a security suite for Underwater Acoustic Sensor Networks comprising both fixed and mobile nodes. The security suite is composed of a secure routing protocol and a set of cryptographic primitives aimed at protecting the ...
Angelica Lo Duca, Gianluca Dini
doaj   +2 more sources

DCN-MAC: A Dynamic Channel Negotiation MAC Mechanism for Underwater Acoustic Sensor Networks

open access: yesSensors, 2020
In the design of media access control (MAC) mechanism in underwater acoustic sensor networks (UASNs), due to the propagation characteristic of low-speed underwater acoustic signals, it is necessary to solve the spatial−temporal uncertainty problem.
Yishan Su, Lijie Dong, Qiuling Yang
doaj   +2 more sources

UAN: underwater acoustic network [PDF]

open access: yes, 2011
Acoustic networks are for underwater what wifi is for terrestrial networks. The ocean is a nearly perfect media for acoustic waves in which regards long range propagation but poses a number of challenges in terms of available bandwidth, Doppler spread and channel fading.
Caiti, A.   +7 more
openaire   +3 more sources

Underwater acoustic networks

open access: yes, 2013
Wireless underwater acoustic communication systems have become one of the most promising technologies for the development and deployment of future ocean observation and sensor networks. Applications range from oil prospecting and transportation to aquaculture, and include pollution control, climate recording, prediction of natural disturbances, search ...
Poncela-González, Javier
openaire   +2 more sources

Realization of Underwater Acoustic Networks. [PDF]

open access: yes, 2009
This work contains a study of underwater acoustic networks. The concept of underwater acoustic networks has been presented with its benefits and drawbacks. An overview of the marine research areas oceanography, seismology, waterside security, marine pollution and marine biology has been made and a review of conventional methods and instrumentation ...
Riksfjord, Håkon
core   +4 more sources

Design and Analysis of Handshake-Based MAC with Delay Variations in Underwater Acoustic Networks. [PDF]

open access: yesSensors (Basel), 2019
The long propagation delay in underwater acoustic channels has attracted tremendous attentions in designing Medium Access Control (MAC). The low acoustic propagation speed and wide area of the acoustic communication range led to a wide range of ...
Dong C   +5 more
europepmc   +2 more sources

FL-SDUAN: A Fuzzy Logic-Based Routing Scheme for Software-Defined Underwater Acoustic Networks

open access: yesApplied Sciences, 2023
In underwater acoustic networks, the accurate estimation of routing weights is NP-hard due to the time-varying environment. Fuzzy logic is a powerful tool for dealing with vague problems.
Jianping Wang   +3 more
doaj   +1 more source

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