Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.8/3324
Título: A 2D ray-tracing based model for wave propagation through forests at micro-and millimeter wave frequencies
Autor: Leonor, Nuno R.
Sanchez, Manuel Garcia
Fernandes, Telmo
Caldeirinha, Rafael F. S.
Palavras-chave: Millimeter wave radio propagation
Modeling
Ray tracing
Scattering
Vegetation
Data: 14-Mai-2018
Editora: IEEE
Resumo: This paper proposes the extension of a 2-D ray-tracing-based model for radiowave propagation in the presence of trees and vegetation areas to include real-sized trees and outdoor forest scenarios. The original propagation model proved to be suitable to characterize the electromagnetic behavior in the presence of indoor tree formation scenarios, despite some limitations found when applied to real-sized trees. In addition, the original propagation model requires the prior knowledge of the trees’ re-radiation function to extract the relevant propagation input parameters, which is not always possible to obtain in outdoor scenarios. Therefore, an empirical method to extract the relevant input propagation parameters based on simple measurements is proposed. The performance of the proposed propagation model extension is extensively assessed in both the line-of-trees and tree formation scenarios, including various (and mixed) species, both in- and out-of-leaf foliation states, and at three signal frequencies. Finally, depending on the type of scenario, a benchmark between the proposed propagation model and both the radiative energy transfer (RET) and discrete RET (dRET) models, for line-of-trees and tree formation, respectively, is presented.
Peer review: yes
URI: http://hdl.handle.net/10400.8/3324
DOI: 10.1109/ACCESS.2018.2836223
Aparece nas colecções:Artigos em revistas internacionais

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