AN SBR IMAGE APPROACH FOR RADIO-WAVE PROPAGATION IN INDOOR ENVIRONMENTS WITH METALLIC FURNITURE/

In this paper, we will propose a deterministic approach to model the r adio wave propagation channels in complex indoor environments. This te chnique applies the modified shooting-and-bouncing-ray (SBR) method to find equivalent sources (images) for each launched ray tube. In addit ion, 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 obta in the total received field at a receiver, Besides, vector-effective h eight (VEH) of an antenna is introduced to consider the polarization c oupling 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 agreeme nt 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 l oss in indoor environments varies considerably according to furniture and polarizations.