Improved high-order FDTD parallel propagator for realistic urban scenarios and atmospheric conditions

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dc.creatorClaudio Garcia Batista
dc.creatorCassio Goncalves do Rego
dc.creatorMarcelo Lúcio Nunes
dc.creatorFrederico Fernandes Neves
dc.date.accessioned2025-03-24T18:16:19Z
dc.date.accessioned2025-09-09T01:08:37Z
dc.date.available2025-03-24T18:16:19Z
dc.date.issued2016
dc.identifier.doi10.1109/LAWP.2016.2535177
dc.identifier.issn1536-1225
dc.identifier.urihttps://hdl.handle.net/1843/80875
dc.languageeng
dc.publisherUniversidade Federal de Minas Gerais
dc.rightsAcesso Restrito
dc.subjectEngenharia elétrica
dc.subjectLinhas elétricas
dc.subjectCorrentes elétricas
dc.subjectSistemas elétricos de potência
dc.subject.otherRadiowave propagation
dc.subject.otherhigh-order uncondi- tionally stable FDTD
dc.subject.otherregularization of material discontinuities
dc.subject.otherparallel algorithm
dc.subject.otherFinite difference methods , Time-domain analysis , Atmospheric modeling , Buildings , Atmospheric measurements , Standards , Computational modeling
dc.subject.otherPropionate , Real Scenarios , Atmospheric Conditions , Finite-difference Time-domain , Parallelization , Urban Environments , Radio Waves , Original Algorithm , Regularization Techniques , Urban Buildings , Complex Urban Environments , Simulation Time , Linear System , Coverage Area , Base Station , Data Exchange , Time-domain Method , Electric Permittivity , Solution Of The Linear System , Standard Atmosphere , University Of Minas Gerais
dc.titleImproved high-order FDTD parallel propagator for realistic urban scenarios and atmospheric conditions
dc.typeArtigo de periódico
local.citation.epage1782
local.citation.spage1779
local.citation.volume15
local.description.resumoThis letter introduces an improved finite-difference time-domain (FDTD) propagator for radiowave prediction in complex urban environments. The original method was based on an unconditionally stable scheme with a high-order formulation and material-independent perfectly matched layers in a moving window algorithm (US-HO-MI-MW-FDTD). In the present work, the regularization technique is applied to treat material discontinuities and consequently to improve the accuracy of the high-order formulation. This permits the inclusion of urban buildings on the FDTD analysis. Moreover, the original algorithm is parallelized with the OpenMP library to achieve high computation performance and use finer FDTD meshes. The new propagator is validated through cases involving atmospheric refraction. Finally, we present and analyze a cellular system measurement campaign.
local.publisher.countryBrasil
local.publisher.departmentENG - DEPARTAMENTO DE ENGENHARIA ELETRÔNICA
local.publisher.initialsUFMG
local.url.externahttps://ieeexplore.ieee.org/document/7420552

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