Results 1 to 10 of about 241,467 (199)

FCN-Based Carrier Signal Detection in Broadband Power Spectrum

open access: yesIEEE Access, 2020
Carrier signal detection has been a problem for a long time, which is the first step for blind signal processing. In this paper, we propose a new method for carrier signal detection in the broadband power spectrum based on the fully convolutional network
Hao Huang   +3 more
doaj   +3 more sources

Dual Tunable Electromagnetically Induced Transparency Based on a Grating-Assisted Double-Layer Graphene Hybrid Structure at Terahertz Frequencies

open access: yesNanomaterials, 2022
We propose a graphene plasmonic structure by applying two graphene layers mingled with a thin gold layer in a silicon grating. By utilizing the finite-difference time-domain (FDTD) method, we investigate the optical response of the system, and observe ...
Xu Zhong   +7 more
doaj   +1 more source

A Broad-Band Wide-Angle Linear-to-Circular Polarization Converter Based on Stripline Metasurface

open access: yesIEEE Access, 2021
This paper proposes a broad-band linear-to-circular polarization converter based on a multi-layer stripline metasurface. The structure is constructed of three stripline metallic layers stacked with two dielectric plates, and it has different ...
Zuning Yang   +5 more
doaj   +1 more source

The Estimation Method of Sensing Parameters Based on OTFS

open access: yesIEEE Access, 2023
In an integrated sensing and communication (ISAC) system, improving the accuracy of delay and Doppler shift sensing parameter estimation is a critical task that sustains the performance of the communication system. To tackle this task, we introduce a two-
Zhiling Tang   +3 more
doaj   +1 more source

Joint task offloading and resource allocation in mobile edge computing with energy harvesting

open access: yesJournal of Cloud Computing: Advances, Systems and Applications, 2022
Mobile edge computing (MEC) is considered to be a promising technique to enhance the computation capability and reduce the energy consumption of smart mobile devices (SMDs) in the sixth-generation (6G) networks.
Shichao Li   +5 more
doaj   +1 more source

All-Dielectric Phase-Gradient Metasurface Performing High-Efficiency Anomalous Transmission in the Near-Infrared Region

open access: yesNanoscale Research Letters, 2021
We propose and numerically demonstrate a phase-gradient metasurface with high anomalous transmission efficiency and a large anomalous refraction angle that consists of discontinuous regular hexagonal nanorods supported by a silica substrate.
Tiesheng Wu   +6 more
doaj   +1 more source

Fuzzy-Based Efficient Healthcare Data Collection and Analysis Mechanism Using Edge Nodes in the IoMT

open access: yesSensors, 2023
The Internet of Things (IoT) is an advanced technology that comprises numerous devices with carrying sensors to collect, send, and receive data. Due to its vast popularity and efficiency, it is employed in collecting crucial data for the health sector ...
Muhammad Nafees Ulfat Khan   +5 more
doaj   +1 more source

Sending-or-Not-Sending Twin-Field Quantum Key Distribution with a Passive Decoy-State Method

open access: yesEntropy, 2022
Twin-field quantum key distribution (TF-QKD) has attracted considerable attention because it can exceed the basic rate-distance limit without quantum repeaters.
Ke Xue   +3 more
doaj   +1 more source

Capturing the amplitude and phase profile of the vortex beam based on coherent detection

open access: yesFrontiers in Physics, 2022
In this study, we propose a scheme to capture the amplitude and phase profile of the orbital angular momentum (OAM) beam based on coherent detection. In the scheme, the OAM beam to be measured is interfered with a local plain wave which is prepared at ...
Shengmei Zhao   +3 more
doaj   +1 more source

Biorthogonal Fourier transform for multichirp-rate signal detection over dispersive wireless channel

open access: yesEURASIP Journal on Wireless Communications and Networking, 2018
Biorthogonal Fourier transform (BFT), consistent with the matched signal transform (MST), has been introduced to demodulate the M-ray chirp-rate signal which possesses good orthogonality in the BFT domain.
Lin Zheng   +3 more
doaj   +1 more source

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