Results 21 to 30 of about 621,396 (302)

Coplanar Discontinuous Transmission Line Feed for Phase Gradient Metasurface Antenna

open access: yesInternational Journal of Antennas and Propagation, 2022
The aim of this study is to efficiently excite the radiation of phase gradient metasurface (PGM), a novel coplanar discontinuous transmission line feed is proposed for reduction of the profile, where 12 uniform discontinuous rectangular rings form the ...
Yiying Wang   +6 more
doaj   +1 more source

Wireless Communication Graphs

open access: yesProceedings of the 2004 Intelligent Sensors, Sensor Networks and Information Processing Conference, 2004., 2005
We consider graph models which represent communication in wireless ad-hoc networks. In such networks, each node equipped with a radio has a certain transmission range, and all surrounding nodes in this range can receive a transmission. In ideal settings, this transmission range creates a circular disk around each node, so that disk intersection graphs ...
Nieberg, T., Hurink, Johann L.
openaire   +1 more source

Single-carrier transmission scheme for extracting characteristic parameters of 32-Point 6PolSK-QPSK

open access: yesEURASIP Journal on Advances in Signal Processing, 2022
Six polarization-shift keying quadrature phase shift keying (6PolSK-QPSK) signal modulation format is formed by different representations of QPSK. A variety of satisfactory single-carrier transmission schemes have been implemented in 24-Point 6PolSK-QPSK.
Yupeng Li   +7 more
doaj   +1 more source

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

Wireless Terahertz Communications

open access: yes2019 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC), 2019
Over the past years, interest in wireless THz communications with so-called T-waves has tremendously increased [1]–[4], because the large carrier frequencies in the range 0.2 THz to 0.9 THz support wide signal band-widths and consequently large data rates.
Freude, W.   +18 more
openaire   +3 more sources

Optical Wireless Communications [PDF]

open access: yes, 2008
Optical Wireless Communications examines some of the most important features of optical wireless communication systems. It considers the benefits and limitations of IR as a medium conveying information wirelessly and compares the advantages and disadvantages of infrared to microwave and other radio systems.
Ramirez-Iniguez, Roberto   +2 more
openaire   +2 more sources

Signaling Design for Cooperative Resource Allocation and Its Impact to Message Reliability

open access: yesIEEE Access, 2023
Decentralized cooperative resource allocation schemes for robotic swarms are essential to enable high reliability in high throughput data message exchanges. These cooperative schemes require control signaling to avoid half-duplex problems at the receiver
Rasmus Liborius Bruun   +5 more
doaj   +1 more source

Wireless communication with chaos [PDF]

open access: yes, 2013
Peer reviewedPublisher ...
A. Goldsmith   +12 more
core   +1 more source

Energy Consumption Analysis of High Quality Multi-Tier Wireless Multimedia Sensor Network

open access: yesIEEE Access, 2017
Video surveillance is one of the promising applications of the Internet of Things paradigm. We see heterogeneous deployment of sensor platforms in a multi-tier network architecture as a key enabler for energy optimization of battery powered high-quality ...
Tenager Mekonnen   +3 more
doaj   +1 more source

BlockEdge: Blockchain-Edge Framework for Industrial IoT Networks

open access: yesIEEE Access, 2020
Industry 4.0 encompasses a promise of a new industrial revolution in terms of providing secure, intelligent, autonomous and self-adaptive industrial IoT (IIoT) networks.
Tanesh Kumar   +8 more
doaj   +1 more source

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