“…This eliminates the huge cost of measurement campaigns [99], [159], [163], [164]. At mmWave frequencies, several studies involved the ray tracing model for predicting the propagation behaviour of the channel in diverse scenarios, as in [103], [142], [151], [160], [164]- [166]. Additionally, several treatise used the ray tracing model to extract and analyze the physical characteristics of the channel, as in [76], [99], [142], [162], [165], [167].…”