An SBR/image approach for radio wave propagation in indoor environments with metallic furniture
Journal
IEEE Transactions on Antennas and Propagation
Journal Volume
45
Journal Issue
1
Pages
98--106
Date Issued
1997
Author(s)
Shin-Hon Chen
Abstract
In this paper, we will propose a deterministic approach to model the radio wave propagation channels in complex indoor environments. This technique applies the modifled shooting-and-bouncing-ray (SBR) method to find equivalent sources (images) for each launched ray tube. In addition, the first-order wedge diffraction from furniture is included and the diffracted rays also can be attributed to corresponding images. By summing the contributions of all these images coherently, we can obtain the total received field at a receiver. Besides, vectoreffective height (VEH) of an antenna is introduced to consider the polarization coupling effect resulting from the multiple reflection inside the rooms. We verify this approach by comparing the numerical results in three canonical examples where closed-form solutions exist. The good agreement indicates that our method can provide a good approximation of high-frequency radio propagation inside rooms where multiple reflection is dominant. Work reported in this paper has shown that the propagation loss in indoor environments varies considerably according to furniture and polarizations. © 1997 IEEE.
SDGs
Type
journal article