Analysis of heuristic uniform theory of diffraction coefficients for electromagnetic scattering prediction

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dc.creatorDiego Tami
dc.creatorCassio Goncalves do Rego
dc.creatorDinael Guevara
dc.creatorAndrés Navarro
dc.creatorFernando Moreira
dc.creatorJordi Giménez
dc.creatorHernan Triana
dc.date.accessioned2025-04-24T18:30:25Z
dc.date.accessioned2025-09-09T00:39:46Z
dc.date.available2025-04-24T18:30:25Z
dc.date.issued2018
dc.identifier.doihttps://doi.org/10.1155/2018/3029152
dc.identifier.issn1687-5869
dc.identifier.urihttps://hdl.handle.net/1843/81823
dc.languageeng
dc.publisherUniversidade Federal de Minas Gerais
dc.relation.ispartofInternational journal of antennas and propagation
dc.rightsAcesso Aberto
dc.subjectSistemas de comunicação sem fio
dc.titleAnalysis of heuristic uniform theory of diffraction coefficients for electromagnetic scattering prediction
dc.typeArtigo de periódico
local.citation.epage11
local.citation.spage1
local.citation.volume2018
local.description.resumoWe discuss three sets of heuristic coefficients used in uniform theory of diffraction (UTD) to characterize the electromagnetic scattering in realistic urban scenarios and canonical examples of diffraction by lossy conducting wedges using the three sets of heuristic coefficients and the Malyuzhinets solution as reference model. We compare not only the results of the canonical models but also their implementation in real outdoor scenarios. To predict the coverage of mobile networks, we used propagation models for outdoor environments by using a 3D ray-tracing model based on a brute-force algorithm for ray launching and a propagation model based on image theory. To evaluate each set of coefficients, we analyzed the mean and standard deviation of the absolute error between estimates and measured data in Ottawa, Canada; Valencia, Spain; and Cali, Colombia. Finally, we discuss the path loss prediction for each set of heuristic UTD coefficients in outdoor environment, as well as the comparison with the canonical results.
local.publisher.countryBrasil
local.publisher.departmentENG - DEPARTAMENTO DE ENGENHARIA ELETRÔNICA
local.publisher.initialsUFMG
local.url.externahttps://onlinelibrary.wiley.com/doi/10.1155/2018/3029152

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