Indoor mobile radio channel at 946 MHz: Measurements and modeling

The results of propagation measurements carried out in an office complex at 946 MHz are described. The objectives are to investigate the impact of desk population on the average propagation loss, to model average path loss, and to fit a statistical description to the measured results. The measurements are conducted on two identically structured floors, i.e., one fully occupied and the other completely empty. The loss in the fully occupied floor is found to be consistently higher, but the propagation loss factor is more uniform in different directions from the base. Fade margin statistics are obtained for mean signal power levels which are between 50 dB and 60 dB less than the signal power at the base. It is found that the Nakagami fading model fits the results better than the generally accepted model in Rayleigh fading.