%0 Journal Article
%T AN Improved UTD Based Model For The Multiple Building Diffraction Of Plane Waves In Urban Environments By Using Higher Order Diffraction Coeficients
%J AUT Journal of Modeling and Simulation
%I Amirkabir University of Technology
%Z 2588-2953
%A Tajvidyi, A.
%A Ghorbanii, A.
%A Nasermoghaddasi, M.
%D 2012
%\ 11/01/2012
%V 44
%N 2
%P 11-17
%! AN Improved UTD Based Model For The Multiple Building Diffraction Of Plane Waves In Urban Environments By Using Higher Order Diffraction Coeficients
%K Higher order diffraction coefficient
%K Multiple-edge Diffraction
%K UTD
%R 10.22060/miscj.2012.121
%X This paper describes an improved model for multiple building diffraction modeling based on the uniform theory of diffraction (UTD). A well-known problem in conventional uniform theory of diffraction (CUTD) is multiple-edge transition zone diffraction. Here, higher order diffracted fields are used in order to improve the result; hence, we use higher order diffraction coefficients to improve a hybrid physical optics (PO)-CUTD model, the results show that the new model corrects errors of the PO-CUTD model. Therefore, the proposed model can find application in the development of theoretical models to predict more realistic path loss in urban environments when multiple-building diffraction is considered.
%U https://miscj.aut.ac.ir/article_121_706ed9bbe66fb8f64547f13ca1a2a14d.pdf