space diversity การใช้

OFDM may be combined with other forms of space diversity, for example antenna arrays and MIMO channels.
These techniques may also be utilized for space diversity ( improved robustness to fading ) or beamforming ( improved selectivity ) rather than multiplexing
:Other than antenna or space diversity, there are other diversity techniques such as frequency / time diversity, antenna pattern diversity, and polarization diversity.
Since the two communications took a different path and take place one after another, this example implements the concept of "'space diversity "'and "'time diversity " '.