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

doi:10.1093/ietcom/e91-b.12.4067

Regular Section

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

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Keywords: UTD, ray tracing, scattering

JOURNAL RESTRICTED ACCESS

2008 Volume E91.B Issue 12 Pages 4067-4070

DOI https://doi.org/10.1093/ietcom/e91-b.12.4067

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Abstract

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 2.7GHz is performed in a complex urban environment. Comparisons between the measurements and the ray tracing results are made in LOS and NLOS environments.

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