Vault — freecad
Development and Validation of a Lightweight Physics-Based Indoor Cellular Propagation Simulator
This paper describes a lightweight indoor cellular signal simulator built from high school physics equations and ray tracing, applied to a university dormitory floor plan modeled in FreeCAD and Blender. Signal strength was measured at nine indoor and two outdoor locations and compared against the simulator and an electromagnetic simulator. The program achieved a mean absolute error of 6.57 dB, slightly better than the 7.78 dB of the reference simulator, and identified the two weakest measured locations among its three lowest estimates.
Get the paper
- Free copy via OpenAlex — reachable when we downloaded it; not re-checked since
- Publisher landing page — may be paywalled
How we found it
- Picked up from a daily alert for freecad
- Added before the full source trail was kept, so only the alert is on record