A Simple Approach to a Statistical Path Loss Model for Indoor Communications

Path-loss in indoor environments is investigated at 1.8 GHz, using a power-law model where the exponent of the distance is the descriptive random variable. The model is extremely simple and easily applicable in practice by working engieers who need only make a few measurements to get a knowledge of path loss sufficient for many applications. The model fits well experimental data in various environments under different propagation conditions, including cross polarization, and the observed behavior of the exponent suggests the possibility of using only one distribution function to statistically characterize path loss.