AN EMPIRICAL MODEL FOR PROPAGATION-LOSS PREDICTION IN INDOOR MOBILE COMMUNICATIONS USING THE PADE APPROXIMANT

摘要

This paper presents a new model for propagation-loss prediction in indoor mobile communications. It uses the free-space loss model added to an empiric function (based on the Pade approximant), and a term that describes the signal randomness (typical of the RF propagation), In order to validate this model, a measurement verification was accomplished for a typical five-floor building of a university. The loss predicted by this model had a mean error of 4.78 dB and a standard deviation of 6.05 dB in relation to the measured data. The formulation of the model does not require accurate information about the environment used in the study, such as the permittivity of the construction materials, layout of the furniture, and so forth, but only needs to be adaptable to any indoor environment.