Results 31 to 40 of about 91,837 (247)

Computation Offloading Strategies for LEO Satellite Edge Computing Systems Based on Different Multiple Access Methods

open access: yesIEEE Access
Mobile Edge Computing (MEC) is pivotal for supporting compute-intensive and latency-critical applications in forthcoming mobile networks. It plays an essential role in providing network services through Low Earth Orbit (LEO) satellites, especially in ...
Bo Wang, Jiecheng Xie, Dongyan Huang
doaj   +1 more source

Gateway deployment algorithm based on 6LoWPAN multi-gateway system

open access: yesDianzi Jishu Yingyong, 2018
The addition of multi-gateway function and protocol in the Destination Oriented Directed Acyclic Graph (DODAG) network routing topology of 6LoWPAN is conducive to the improvement of the entire network capacity and the reduction of energy consumption and ...
He Aizhou, Zheng Lin, Qu Qiji
doaj   +1 more source

Active Switching of Extremely High-Q Fano Resonances Using Vanadium Oxide-Implanted Terahertz Metamaterials

open access: yesApplied Sciences, 2020
In this paper, we demonstrate an active switching of extremely high Q-factor Fano resonances using vanadium oxide (VO2)-implanted THz asymmetric double C-shaped metamaterial (MM) structures.
Jing Ma   +4 more
doaj   +1 more source

Terahertz Resonances of Transverse Standing Waves in a Corrugated Plate Waveguide

open access: yesIEEE Photonics Journal, 2022
Terahertz (THz) propagation in periodic structures has attracted great attention because of its captivating electrical and optical properties. However, the created THz band gaps are usually considered to be caused by Bragg resonances.
Jing Ma   +5 more
doaj   +1 more source

Localization of Wearable Ultra Wideband Antennas for Motion Capture Applications [PDF]

open access: yes, 2014
This paper presents a study of human body localisation using Ultra Wideband (UWB) technology. Various base station configurations, time of arrival and first peak detection algorithms are used to estimate the position of body-worn antennas.
Batchelor, John C.   +4 more
core   +1 more source

Multi‐band joint local sparse tracking via wavelet transforms

open access: yesIET Computer Vision, 2016
A novel multi‐band joint local sparse tracking algorithm via wavelet transforms is proposed in this study. The object image may contain rich information of different types; the authors use wavelet transforms to decompose the object image into some sub ...
Guang Han   +5 more
doaj   +1 more source

A Low-Cost Multibeam Switching Antenna Using Reconfigurable Hybrid Metasurface for Beamforming Applications

open access: yesMicromachines, 2023
In this paper, we proposed a multibeam switching antenna based on a low-cost reconfigurable hybrid metasurface applied for beamforming systems. The antenna consists of two parts: a microstrip feed antenna and a transmission hybrid metasurface. The latter
Lili Sheng   +4 more
doaj   +1 more source

Air‐Pressure–Actuated Vibroacoustic Metamaterial With Tunable Bandgap: Design, Modeling, and Characterization

open access: yesAdvanced Engineering Materials, EarlyView.
This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal   +2 more
wiley   +1 more source

EZR-MZR Resonators for Compact Low-Profile Omnidirectional Circular-Polarized Antenna Design

open access: yesIEEE Photonics Journal, 2017
New zeroth-order resonator (ZOR): the curved EZR-MZR resonator [epsilon-zero resonance (EZR) and mu-zero resonance (MZR)] was proposed for circular-polarized (CP) antenna design with low-profile and omnidirectional characteristics.
Lin Peng   +4 more
doaj   +1 more source

Graphene-Based Magnetically Tunable Broadband Terahertz Absorber

open access: yesIEEE Photonics Journal, 2022
This study proposes a broadband absorber based on graphene and one-dimensional photonic crystal (1DPC) to achieve magnetically tunable broadband absorption in the terahertz (THz) frequency range.
Zhenyan Wei   +4 more
doaj   +1 more source

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