Results 31 to 40 of about 55,562 (312)

Tuning rectangular microstrip antenna through scan and zoom algorithm

open access: yesEURASIP Journal on Wireless Communications and Networking, 2018
Microstrip antennas have been widely studied and can be applied to a large number of wide frequency domain in wireless communication. Microstrip antennas are featured with light weight, small volume, and low cost advantages.
Qinglian Zhang, Xin Zhang, Yupeng Li
doaj   +1 more source

Imbalanced Data Classification for Multi-Source Heterogenous Sensor Networks

open access: yesIEEE Access, 2020
Most of the traditional classification algorithms are based on the uniform distribution of samples, and the effect is not ideal when dealing with such data, which mainly shows that the classification results incline to the majority class.
Wei Wang   +3 more
doaj   +1 more source

Free Space Optical Link for Simultaneous Power and 1 Gb/s Data Transmission [PDF]

open access: yes, 2021
S.23-24We study the trade-off between power and data transfer for a two-meter wireless gallium-arsenide laser and photovoltaic link. The use of orthogonal frequency-division multiplexing with adaptive bit and power loading results in a peak data rate of ...
Haas, H., Fakidis, J., Helmers, Henning
core   +1 more source

AtICNet: semantic segmentation with atrous spatial pyramid pooling in image cascade network

open access: yesEURASIP Journal on Wireless Communications and Networking, 2019
This paper describes a new type of image segmentation method based on deep convolutional neural networks (DCNN) in the actual autonomous driving scene.
Jin Chen, Chuanya Wang, Ying Tong
doaj   +1 more source

A wireless power transfer system for electrical vehicles exploiting magnetically coupled resonance and a tapped capacitance impedance transformer [PDF]

open access: yes, 2014
The input impedance of a wireless power transfer system is heavily influenced by variation of the load impedance, distance between coils and presence of any massive conducting or shielding structures that may exist around the system.
Mihai D. Rotaru   +5 more
core   +1 more source

Wireless power transmission technologies

open access: yesRadiotekhnika, 2022
The article consists of three parts. The analysis of existing technologies of wireless power transfer (WPT) is carried out in the first part. It is noted that one of the factors that determines the choice of one or another WPT technology is the distance over which the power is transmitted and the type of electromagnetic (EM) energy used. The essence of
V.O. Alieksieiev   +3 more
openaire   +3 more sources

Wireless power transmission system

open access: yesInternational Journal of Innovative Research in Physics, 2020
Wireless power transmission system is a special type of power transmission process. Wireless power transmission system is used to transmit power from one place to another without any physical contact between the two coils or devices. Wireless Power Transmitter device consists of a transmitter, which takes electric power as input from a power source ...
Biswanath Ghosh   +3 more
openaire   +1 more source

In situ characterization of two wireless transmission schemes for ingestible capsules [PDF]

open access: yes, 2007
We report the experimental in situ characterization of 30-40 MHz and 868 MHz wireless transmission schemes for ingestible capsules, in porcine carcasses.
Drysdale, T.D.   +2 more
core   +1 more source

Study on the Electromagnetic Field Distribution of an Implantable Antenna for an Intelligent Health Monitoring System

open access: yesIEEE Access, 2019
In this paper, an intelligent health monitoring system based on body-centric wireless communications is studied, and the implantable antenna is investigated. To design the antennas for intelligent health monitoring systems, the electromagnetic near-field
Yang Li   +3 more
doaj   +1 more source

Utilization-Oriented Spectrum Allocation in an Underlay Cognitive Radio Network

open access: yesIEEE Access, 2018
Spectrum access and assignment in cognitive radio networks (CRNs) are hot topics in wireless communications. Dynamic spectrum access and assignment could greatly improve spectrum resource efficiency and help to satisfy the explosively increasing ...
Xiu Zhang   +3 more
doaj   +1 more source

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