An empirical model for propagation loss prediction in indoor mobile communications using Pade approximant

This paper presents a model for path loss prediction in indoor mobile communications. It uses the free-space loss model added to an empiric function (based on Pade approximant), and a term that describes the sign randomness. In order to validate this model, a measurement campaign was accomplished at a typical 5 floors building of a university. The loss predicted by this model had a mean error of 4.78 dB and standard deviation of 6.05 dB in relation to the measured data. The proposed model doesn't need accuracy information of the environment in study, besides being adaptable to any indoor environment.