The MIMO OFDM system may comprise {TAIL ~ at least one MIMO OFDM transmitter} and {HEAD ~ at least one MIMO OFDM receiver} 
The MIMO OFDM system may comprise { TAIL ~ at least one MIMO OFDM transmitter } and { HEAD ~ at least one MIMO OFDM receiver }
OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD