Results 31 to 40 of about 172,090 (150)

Geochemistry of amphibolites and related graphitic gneisses from the Suchý and Malá Magura Mountains (central Western Carpathians) – evidence for relics of the Variscan ophiolite complex

open access: yesGeologica Carpathica, 2015
Three small bodies of amphibolites and associated graphitic gneisses from the Suchý and Malá Magura Mountains (Tatric Megaunit, central Western Carpathians) have been studied by petrographic and geochemical methods.
Ivan Peter, Méres Štefan
doaj   +1 more source

Required Restrictions on Characteristics of 4G/5G Mobile (Cellular) Communications to Ensure their Safety for Users

open access: yesДоклады Белорусского государственного университета информатики и радиоэлектроники, 2022
Implementation of intensive development of technologies, systems, and services of mobile (cellular) communications (CC) of the fourth (4G) and fifth (5G), and by 2030 also the sixth (6G) generation, implying an increase by many orders of magnitude in the
V. I. Mordachev
doaj   +1 more source

Design and Implementation of a Specialised Millimetre-Wave Exposure System for Investigating the Radiation Effects of 5G and Future Technologies

open access: yesSensors
As the fifth-generation (5G) network is introduced in the millimetre-wave (mmWave) spectrum, and the widespread deployment of 5G standalone (SA) is approaching, it becomes essential to establish scientifically grounded exposure limits in the mmWave ...
Negin Foroughimehr   +4 more
doaj   +1 more source

The sixth-generation mobile communication network with endogenous intelligence: architectures,use cases and challenges

open access: yesDianzi Jishu Yingyong, 2021
In order to meet the growing demand of new services and facilitate the application of communication technology in vertical industries, mobile communication networks will gradually evolve with more intelligence, finally resulting in endogenous ...
Sun Yaohua   +3 more
doaj   +1 more source

Towards multi-modal and cross-modal integration in LiFi-based sensing

open access: yesScientific Reports
Sensing and localization are envisioned to play key role in shaping the future of the sixth-generation (6G) of wireless networks by enhancing their ability to make intelligent decisions. Existing research efforts have focused on utilizing radio-frequency
Shimaa Naser   +2 more
doaj   +1 more source

An intelligent wireless transmission toward 6G

open access: yesIntelligent and Converged Networks, 2021
With the deployment and commercial application of 5G, researchers start to think of 6G, which could meet more diversified and deeper intelligent communication requirements.
Ping Zhang   +5 more
doaj   +1 more source

Distributed MIMO Systems for 6G

open access: yes2023 Joint European Conference on Networks and Communications & 6G Summit (EuCNC/6G Summit), 2023
This study focuses on Distributed MIMO (D-MIMO) systems and provides a discussion about their role in next generation networks. The paradigm shift to distributed networks offers great potential to address the 6G requirements, through macro diversity. As 6G scenarios and use cases continue to emerge, new challenges are likely to arise that may affect ...
Haliloglu, Omer   +8 more
openaire   +3 more sources

Energy-Efficient Joint User Association, Backhaul Bandwidth Allocation, and Power Allocation in Cell-Free mmWave UAV Networks

open access: yesDrones
In this article, we propose a cell-free network architecture for an unmanned aerial vehicle (UAV) base station (BS), i.e., UBS, incorporating high-altitude platform stations (HAPSs) as central processing units (CPUs). The goal is to guarantee the quality
Zhiwei Si   +6 more
doaj   +1 more source

Quantum for 6G communication: A perspective

open access: yesIET Quantum Communication, 2023
Abstract In the technologically changing world, the demand for ultra‐reliable, faster, low power, and secure communication has significantly risen in recent years. Researchers have shown immense interest in emerging quantum computing (QC) due to its potentials of solving the computing complexity in the robust and efficient manner.
Muhammad Zulfiqar Ali   +6 more
openaire   +2 more sources

Enhancing 5G propagation into vehicles and buildings using optically transparent and polarisation insensitive metasurfaces over wide-incidence angles

open access: yesScientific Reports
This article introduces two transmissive metasurfaces applied to normal windows, aiming to improve the 5G outdoor-to-indoor (O2I) coverage. These windows can be utilized in various settings, such as vehicles or buildings.
Amirmasood Bagheri   +5 more
doaj   +1 more source

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