Pathloss Measurements and Modeling at 3.45GHz for a Mixed Indoor/Outdoor Campus Environment.

Extensive pathloss measurements are carried out at 3.45GHz in a campus block environment with mixed indoor and outdoor areas. Measurements are carried out under two scenarios of transmitter placement namely, a) indoor and b) outdoor locations. Receiver locations are categorized into indoor, outdoor, and outdoor-to-indoor (O2I) locations, and investigations led to evident scenario-specific effects on the pathloss modeling. The standard log distance pathloss model is fitted for the different categories, and a good agreement of the shadow fading standard deviation to 3GPP recommendations is observed. Furthermore, a systematic approach to obtain the O2I penetration loss, without any bias in the sampling, for the scenarios with a concrete wall and a wall with a glass door is carried out and compared against the recommendations from 3GPP pathloss modeling.