A method of moments based indoor propagation model

This paper presents initial efforts to develop a full-wave propagation model for indoor electromagnetic wave propagation. The model is based on the Volume Electric Field Integral Equation (VEFIE) which when discretised by the Method of Moments (MoM) results in a linear system whose iterative solution can be expedited through use of the FFT. Although the formulation requires the discretisation of the entire volume, only unknowns placed in the scattering material (walls, etc) contribute to the scattered field. Consequently, unknowns placed in free space can effectively be removed from the update process in each iteration leading to rapid convergence. Results are presented documenting the computational efficiencies of the formulation and simple path loss models are created from the full-wave simulations which are in accordance with those reported in the literature.