Diversity and Multiplexing of MIMO

•In general, the greater the space separation the less the correlation coefficient and so the better the Multiplexing or Diversity, if it will not generate side-effect like differential propagation loss
–Antenna space separations of multiplexing and diversity antenna structures have the order of multiple wavelengths
•The greater the angle separation the less the correlation coefficient and so the better the multiplexing or diversity as well, if it will not generate side-effect like blocking
–Antenna angle separations of multiplexing and diversity antenna structures have the order of multiple beamwidths, or
–Antenna pattern differentiations of multiplexing and diversity antenna structures have orthogonality or well compensation between each other, e.i. null-patterns relative to peak-patterns (and furthermore, cross-polarizations relative to co-polarizations)