An Experimental Massive MIMO Channel Matrix Model for Hand-Held Scenarios

A novel, experimental massive channel matrix model for indoor scenarios is proposed. In this model, the hand-held effects of smartphone users are taken into consideration, as well as the correlation and coupling at transmitters and receivers in the conventional models. Hence, the proposed model is more applicable in real environments. Measurements at 3.5 GHz are carried out in a typical indoor scenario with a massive multiple-input multiple-output (MIMO) testbed to serve as a base station and an eight-antenna handset to mimic a smartphone. Channel performance predicted by the proposed model is in good agreement with the measurement results. It is highlighted that the proposed model is more accurate than the traditional massive MIMO channel matrix models.