Results 11 to 20 of about 3,704 (186)

Modeling Scheme of Multi-Layer Heterogeneous Network for Dense Hotspot Area [PDF]

open access: yesJisuanji gongcheng, 2021
To address the heterogeneity in Base Station(BS) deployment and the coupling between User Equipment (UE) and BS in the hotspot communication scenario of the fifth-generation(5G)/beyond 5G(B5G) networks,this paper proposes a three-layer heterogeneous ...
Lü Yaping, JIA Xiangdong, CHEN Yuwan, LU Yi
doaj   +1 more source

Performance Analysis of BDS–5G Combined Precise Point Positioning

open access: yesRemote Sensing, 2022
Precise point positioning (PPP) technology is one of the core technologies in the field of GNSS high-precision positioning. It is used widely because it can realize centimeter-level positioning in outdoor environments by using only a single receiver ...
Fangxin Li   +5 more
doaj   +1 more source

5G PPP in Review

open access: yes5G PPP paper, 2023
The formation of the 5th Generation Public Private Partnership (5G PPP) in 2014, as part of the European Commission's Horizon 2020 Framework Programme, set in motion what will be ten years of research into 5G Mobile Telecoms. The work of the projects, working groups and governance structure of 5G PPP has driven forward the European contribution to the ...
Warren, Dan   +3 more
openaire   +1 more source

Design, Development, and Evaluation of 5G-Enabled Vehicular Services: The 5G-HEART Perspective

open access: yesSensors, 2022
The ongoing transition towards 5G technology expedites the emergence of a variety of mobile applications that pertain to different vertical industries.
Grigorios Kakkavas   +8 more
doaj   +1 more source

Microglial Rack1 Deficiency Alleviates Alzheimer's Disease Pathology through Enhancing IGF1-Mediated Astrocytic Phagocytosis. [PDF]

open access: yesAdv Sci (Weinh)
Alzheimer's disease (AD) is the most common neurodegenerative disorder. This study demonstrates that microglial Rack1 deficiency decreased Aβ deposition and neuroinflammation and ameliorated cognitive impairments in AD model mice by enhancing IGF1‐mediated astrocytic phagocytosis.
Zhang J   +13 more
europepmc   +2 more sources

A Statistical Estimation of 5G Massive MIMO Networks’ Exposure Using Stochastic Geometry in mmWave Bands

open access: yesApplied Sciences, 2020
This paper aims to derive an analytical modelling of the downlink exposure in 5G massive Multiple Input Multiple Output (MIMO) antenna networks using stochastic geometry. The Poisson point process (PPP) is assumed for base station (BS) distribution.
Maarouf Al Hajj   +4 more
doaj   +1 more source

Reducing Service Creation Time Leveraging on Network Function Virtualization

open access: yesIEEE Access, 2020
Fifth-generation (5G) networks are envisioned to simultaneously support several services with different connectivity requirements. In this respect, service creation time is a key performance indicator (KPI) for service providers when planning the ...
Winnie Nakimuli   +5 more
doaj   +1 more source

High positioning accuracy in GNSS systems and receivers

open access: yesGEOmedia, 2018
In the last few months we have been witnessing a remarkable (and, to some extent, surprising) increase of interest for GNSS high accuracy positioning, involving both systems and receivers.
Marco Lisi
doaj   +3 more sources

Multi-UAV Assisted Multi-Tier Millimeter-Wave Cellular Networks for Hotspots With 2-Tier and 4-Tier Network Association

open access: yesIEEE Access, 2020
The evolution of the fifth-generation (5G)/ beyond 5G (B5G) mobile communication networks greatly depends on the seamless integration of terrestrial and sky networks over advanced multi-tier heterogeneous network (HetNet) infrastructure.
Pengshan Ji   +4 more
doaj   +1 more source

A Scalable Organoid Model of Urothelial Aging for Metabolic Interrogation, Infection Modeling, and Reversal of Age-Associated Changes. [PDF]

open access: yesAging Cell
mBEDOs: a scalable platform for modeling urothelial aging. mBEDOs derived from aged mouse bladders capture essential molecular and cellular features of urothelial aging and provide a versatile system for high‐throughput metabolic profiling, therapeutic screening via metabolite supplementation, age‐ and sex‐based analyses, infection modeling, and immune–
Parab AR   +8 more
europepmc   +2 more sources

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