Results 21 to 30 of about 26,654,237 (305)

Channel Modeling for UAV-to-Ground Communications With Posture Variation and Fuselage Scattering Effect [PDF]

open access: yesIEEE Transactions on Communications, 2022
Unmanned aerial vehicle (UAV)-to-ground (U2G) channel models play a pivotal role in reliable communications between UAV and ground terminal. This paper proposes a three-dimensional (3D) non-stationary hybrid model including large-scale and small-scale ...
B. Hua   +7 more
semanticscholar   +1 more source

IRS-Aided Wireless Communication: From Physics to Channel Modeling and Characterization

open access: yesIEEE Access, 2023
Intelligent reflecting surface has recently emerged as a cost-effective solution to overcome the deep fading and uncontrollable wireless environment. This leads to a need for studies on the wireless channels of IRS-aided wireless communication (IRSaWC ...
Phu Van Tuan, Ic Pyo Hong
doaj   +1 more source

MIMO-GAN: Generative MIMO Channel Modeling [PDF]

open access: yesICC 2022 - IEEE International Conference on Communications, 2022
We propose generative channel modeling to learn statistical channel models from channel input-output measurements. Generative channel models can learn more complicated distributions and represent the field data more faithfully.
Tribhuvanesh Orekondy   +2 more
semanticscholar   +1 more source

1,3-Thiazine, 1,2,3,4-Dithiadiazole, and Thiohydrazide Derivatives Affect Lipid Bilayer Properties and Ion-Permeable Pores Induced by Antifungals

open access: yesFrontiers in Cell and Developmental Biology, 2020
Over the past decade, thiazines, thiadiazoles, and thiohydrazides have attracted increasing attention due to their sedative, antimicrobial, antiviral, antifungal, and antitumor activities.
Anastasiia A. Zakharova   +5 more
doaj   +1 more source

Intelligent Drone Positioning via BIC Optimization for Maximizing LPWAN Coverage and Capacity in Suburban Amazon Environments

open access: yesSensors, 2023
This paper aims to provide a metaheuristic approach to drone array optimization applied to coverage area maximization of wireless communication systems, with unmanned aerial vehicle (UAV) base stations, in the context of suburban, lightly to densely ...
Flávio Henry Cunha da Silva Ferreira   +3 more
doaj   +1 more source

QRIS: A QuaDRiGa-Based Simulation Platform for Reconfigurable Intelligent Surfaces

open access: yesIEEE Access, 2023
Reconfigurable Intelligent Surfaces (RISs) are a promising way to improve the performance of wireless networks. However, despite the high interest in the research community, no flexible enough simulation platform allows for studying the performance of ...
Ilya Burtakov   +3 more
doaj   +1 more source

Electromagnetic-Compliant Channel Modeling and Performance Evaluation for Holographic MIMO [PDF]

open access: yes2022 IEEE Globecom Workshops (GC Wkshps), 2022
Recently, the concept of holographic multiple-input multiple-output (MIMO) is emerging as one of the promising technologies beyond massive MIMO. Many challenges need to be addressed to bring this novel idea into practice, including electromagnetic (EM ...
Tengjiao Wang   +6 more
semanticscholar   +1 more source

Intelligent and Ubiquitous Positioning Framework in 5G Edge Computing Scenarios

open access: yesIEEE Access, 2020
The prosperity of artificial intelligence and 5G has continuously enhanced the capabilities of edge devices. Edge computing is one of the key technologies of 5G network in the future, and the positioning capabilities of edge devices can significantly ...
Chi Guo   +4 more
doaj   +1 more source

Contourite channels – Facies model and channel evolution

open access: yesSedimentology, 2022
AbstractDespite the rise in published evidence of deep‐marine bottom current processes and associated deposits there are still very few documented outcrop examples. Herein are reported results of a contourite channel system related to the late Miocene palaeo‐Mediterranean Outflow Water in the Rifian Corridor, Morocco.
Wouter de Weger   +8 more
openaire   +4 more sources

Performance of Wireless Powered Communication Systems Over Beaulieu-Xie Channels With Nonlinear Energy Harvesters

open access: yesIEEE Open Journal of the Communications Society, 2023
Performance of wireless powered wireless systems is analyzed. The wireless devices in such systems scavenge energy from sources in downlinks and use the energy to communicate in uplinks. We introduce two new models for these energy harvesters to consider
Adebola Olutayo   +4 more
doaj   +1 more source

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