Capacity Analysis for Time-Variant MIMO Channel Measurements at Low THz Frequencies

THz communication is widely discussed as prospective technology for the next generation of mobile systems. This paper presents time-variant multiple-input multiple-output (MIMO) channel measurements at 300 GHz for two representative scenarios. The averaged signal-to-noise ratio shows the impact of blockage and interference whereas the eigenvalues of the MIMO channel matrix reveal a periodic oscillation that is due to the change of the relative path lengths of the direct paths in the order of wavelengths for moving users at THz frequencies. The measurement results serve as foundation for realistic assumptions for future theoretical works and simulation activities.