Multi-user MIMO  From Wikipedia, the free encyclopedia
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navigation, search  In radio, multi-user MIMO (MU-MIMO) is a set
of advanced MIMO (pronounced mee-moh or my-moh), multiple-input
and multiple-output, technologies where the available antennas
are spread over a multitude of independent access points and
independent radio terminals - each having one or multiple
antennas. In contrast, single-user MIMO considers a single
multi-antenna transmitter communicating with a single multi-
antenna receiver. To enhance the communication capabilities of
all terminals, MU-MIMO applies an extended version of space-
division multiple access (SDMA) to allow multiple transmitters
to send separate signals and multiple receivers to receive
separate signals simultaneously in the same band. PU2RC is a
fundamental and practical MU-MIMO technology for broadcast and
multiple access wireless communications.  Like the relationship
between OFDM and OFDMA, MU-MIMO (and, similarly,