How to predict the power received in the given area when mmWaves are in use? This post describes three classes of propagation models can be addressed starting from very basic to precise ray-tracing models for mmWaves.
RIMEDO Labs Blog
5G is the first system where frequencies higher than 6 GHz are taken into account. The motivation behind new spectrum portions is the mentioned need for offering throughput of gigabit/s and more. The game is worth playing since, in the mmWave, Gigahertz spectrum bandwidths can be applied. But one may pose the question: if the price is so exciting then why nobody used mmWaves previously in cellular systems?