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