g a spherical coordinate system at an elevation angle A and an azimuth angle . Parameter eo is the free space field strength, k is the propagation constant, and s1 and s2 are the distances from the source to the edge and from the edge to the receiver point, respectively. This 3D RL tool can provide radio channel results such as RF power distribution, path loss, and time-domain results (e.g., power delay profiles). Table 8.1 presents the simulation parameters employed in order to perform the different simulation runs for the three different environments under analysis in this chapter. The parameters have been chosen based on criteria from previous convergence and meshing analysis studies [31]. 8.2.1 University Campus Scenario The first scenario under analysis is the campus of the Universidad Pública de Navarra (UPNA), located in the city of Pamplona, in Spain. The campus has an approximate surface of 200.000 r with 16 buildings on premises and with a community of 8000 students and over 1500 research, teaching, and administrative staff. Within the campus, IoT connectivity solutions have been planned for multiple applications, such as botanical garden monitoring or energy smart metering options. A schematic representation of the simulation model implemented to perform wireless channel analysis is depicted in Fig. 8.1. Different transceivers have been located within the scenario, in order to model the behavior of potential IoT nodes performing infrastructure monitoring tasks, in locations such as lampposts. Wireless channel estimations have been obtained for the complete scenario under test, considering any potential receiver location within the simulation volume, for two different frequencies of operation (868 MHz, for the case of LPWAN; 2.4 GHz, for the case of WLAN/BT/BLE; and 3.5 GHz, for the case of 5G NR FR1 frequency bands). Estimations of received power levels are obtained for the complete volume of the scenario under analysis, including the inner portions of buildings, which have also been modeled, consideri