Propagation prediction in and through buildings

The potential implementation of wireless radio local area networks and personal communication services inside buildings require a thorough understanding of signal propagation in a building. In this paper, an in-building prediction is presented. This prediction model focuses on a single floor of a building, but is applicable to different floors of the building. This model is also applicable to the through-building propagation loss by applying the same principle. The validation of this model was done in two different buildings of similar construction in the 900-MHz band. A special feature of this model is its capability to handle different types of obstructions. The model is validated by gathering the measured values for a specific floor of a building and comparing them with the predicted values. The standard deviation for measured versus predicted signal is within 3 dB