An Experimental Study on Indoor Massive 3D-MIMO Channel at 30-40 GHz Band

Three-dimensional (3D) multiple-input multiple-output (MIMO) channel sounder measurements are producposed for a multi-user MIMO channel at the 30-40 GHz mm-wave band. A 3D-MIMO downlink transmissions links withto two users is considered. The measurement campaign employing a vector network analyzer (VNA) washas been performed in an indoor office scenario. Based on the measurement results, weThe characterizeations of mm-wave 3D-MIMO channels are performed in the wavenumber domain and the time domain, which are jointly analyzed via a 3D inverse fast Fourier transform (IFFT). Measurement shows that the massive 3D-MIMO has a significant improvement on resolution of multipathes beyond none-massive 3D-MIMO