Results 21 to 30 of about 1,081,155 (378)

Security in Wireless Sensor Networks: Issues and Challenges [PDF]

open access: yes, 2006
Wireless Sensor Network (WSN) is an emerging technology that shows great promise for various futuristic applications both for mass public and military.
Delic, H, Ersoy, C, Onel, T, Onur, Ertan
core   +3 more sources

Facial Expression Recognition From Image Sequence Based on LBP and Taylor Expansion

open access: yesIEEE Access, 2017
The aim of an automatic video-based facial expression recognition system is to detect and classify human facial expressions from image sequence. An integrated automatic system often involves two components: 1) peak expression frame detection and 2 ...
Yuanyuan Ding   +3 more
doaj   +1 more source

A Novel Dynamic Spectrum-Sharing Method for GEO and LEO Satellite Networks

open access: yesIEEE Access, 2020
In this article, we investigate the spectrum-sharing for a space information network comprised of a geostationary orbit (GEO) satellite and a pair of low earth orbit (LEO) satellites, where one spectrum-sensing LEO (SLEO) is used to sense the status of ...
Yunfeng Wang   +2 more
doaj   +1 more source

Wireless sensor network for structural health monitoring: A contemporary review of technologies, challenges, and future direction

open access: yesStructural Health Monitoring, 2019
The importance of wireless sensor networks in structural health monitoring is unceasingly growing, because of the increasing demand for both safety and security in the cities.
Mohammed Abdulkarem   +3 more
semanticscholar   +1 more source

Digital signature scheme for information non-repudiation in blockchain: a state of the art review

open access: yesEURASIP Journal on Wireless Communications and Networking, 2020
Blockchain, as one of the most promising technology, has attracted tremendous attention. The interesting characteristics of blockchain are decentralized ledger and strong security, while non-repudiation is the important property of information security ...
Weidong Fang   +5 more
doaj   +1 more source

Resource Aware Sensor Nodes in Wireless Sensor Networks [PDF]

open access: yes, 2005
Wireless sensor networks are continuing to receive considerable research interest due, in part, to the range of possible applications. One of the greatest challenges facing researchers is in overcoming the limited network lifetime inherent in the small ...
Al-Hashimi, Bashir M.   +3 more
core   +1 more source

An Efficient Wireless Sensor Network for Industrial Monitoring and Control

open access: yesItalian National Conference on Sensors, 2018
This paper presents the design of a wireless sensor network particularly designed for remote monitoring and control of industrial parameters. The article describes the network components, protocol and sensor deployment, aimed to accomplish industrial ...
Juan Aponte Luis   +5 more
semanticscholar   +1 more source

A survey of localization in wireless sensor network [PDF]

open access: yes, 2012
Localization is one of the key techniques in wireless sensor network. The location estimation methods can be classified into target/source localization and node self-localization. In target localization, we mainly introduce the energy-based method.
Ampeliotis D.   +32 more
core   +2 more sources

Analyze UCA Based OAM Communication From Spatial Correlation

open access: yesIEEE Access, 2020
Orbital Angular Momentum(OAM) of Electromagnetic(EM) wave can be seen as a new degree of freedom(DoF) for wireless communication besides time and frequency. Uniform Circular Antenna Array(UCA) fed with signal of equal amplitude and equal phase difference
Wei Yu   +3 more
doaj   +1 more source

Supporting protocol-independent adaptive QoS in wireless sensor networks [PDF]

open access: yes, 2010
Next-generation wireless sensor networks will be used for many diverse applications in time-varying network/environment conditions and on heterogeneous sensor nodes.
De Poorter, Eli   +4 more
core   +2 more sources

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