A theoretical model for radio signal attenuation inside buildings

A theoretical model is proposed for predicting path loss inside buildings. The theory involves a waveguide model of the indoor environment which permits a rigorous modal solution similar to that developed by Mahmoud and Wait (1974) for propagation in tunnels. Comparisons of the theory with the measurements made by Arnold, Murray and Cox (1989) at the AT&T Laboratories building in Crawford Hill, NJ, show general agreement.<
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