4 research outputs found

    Stochastic Geometry-based Modelling of Mobile UAV Relay Networks under Realistic Fading

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    We consider a relay network based on Unmanned Aerial Vehicles (UAV). Terrestrial Base Stations (TBS) and UAV Relay Nodes (RN) are modelled using two Homogeneous Poisson Point Processes (HPPP). UAVs can hover at a fixed position or move following specific displacement schemes. The Coverage Probability (CP) of a typical user equipment (UE) is derived, either when it communicates via a direct link (from the TBS to the UE) or via a relay link (from the TBS to the UE through a UAV RN). Every link can be in Line-of-Sight (LoS) or Non Line-of-Sight (NLoS), and suffers from Rician fading with distance-dependent parameters. This coverage is calculated by means of both stochastic geometry (SG) and Monte-Carlo (MC) simulations. The benefits of the use of UAV as RNs are analysed depending on their altitude, density, and mobility scheme.Comment: 10 pages, 4 figures. Complete technical paper, associated with a submission at the 2021 IEEE 93rd Vehicular Technology Conference (VTC2021-Spring) (https://events.vtsociety.org/vtc2021-spring/) with DOI https://doi.org/10.1109/VTC2021-Spring51267.2021.9448745 First version published on Arxiv on 13/10/2020, added to IEEE Xplore on 15/06/202

    Quelques applications des relateurs arithmetiques De la physique a la socio-economie (documents anciens inedits et syntheses recentes)

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    Available at INIST (FR), Document Supply Service, under shelf-number : 16298, issue : a.1992 n.265 / INIST-CNRS - Institut de l'Information Scientifique et TechniqueSIGLEFRFranc

    Tore Supra Team Members 1988-2008

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    TORE SUPRA Team Mmembers 1988-2008

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