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Improving the Accuracy of Ray Tracing Estimation Considering Inhomogeneous Building Surfaces in Urban Environments
Jae-Woo LIM Il-Suek KOH Youn-Hyun PARK Hyun-Wook MOON Han-Shin JO Jong-Gwan YOOK Yong-Joong YOON
IEICE TRANSACTIONS on Communications
Publication Date: 2008/12/01
Online ISSN: 1745-1345
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Antennas and Propagation
UTD, ray tracing, scattering,
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To improve path loss estimation, a ray tracing method for inhomogeneous building surfaces and its verification are presented in this paper. Considering real building surfaces with many heterogeneous materials, the effective specular reflection based on a physical optics (PO) approximation is modeled and applied to the reflection in a ray tracing method. To verify the proposed method, measurement at 2.7 GHz is performed in a complex urban environment. Comparisons between the measurements and the ray tracing results are made in LOS and NLOS environments.