An approach to propagation prediction in a complex mine environment

Propagation loss measurements taken in a real gold mine in Val-d´Or, Northen Quebec, Canada at 900 MHz and 2.45 GHz are reported and compared with the ray tracing technique and the cascade impedance method. Significant statistical parameters for wireless communication such as mean, standard deviation, fast fading are presented. The probability laws and pdf density in the case of propagation in a mine tunnel are discussed and compared with the Rayleigh, Rice and statistical analysis of measurements in the case of fast fading, direct and multipath component ratio.