This paper presents the results of radio channel measurements and ray tracing simulations for an indoor propagation environment. A model for depolarizing penetration is combined with a ray tracing tool to account for depolarization.
Mani, F., & Oestges, C. (2009). A ray based indoor propagation model including depolarizing penetration. Proceedings 3rd European Conference on Antennas and Propagation, 3835-3838. https://hdl.handle.net/2078.5/255047