... exploiting the receiving diversity by using either EGC or MRC, as shown in Figures 6, 7, 8 ,and9 . Without receiver combining, the BER is much worse than that in SISO-OFDM, simply becauseof the SINR ... Communications and NetworkingDnt;mfor the following reception methods: (1)demodulationwithout combining, (2)EGC ,and( 3)MRC.Note that the SINR for each combining scenario (i.e.,without combining, ... contributed by the subcarriers otherthan the nth subcarri er of the interfering transmit antennas,that is, the intercarrier-interantenna interference (ICIAI).Then we derive Var{α(n)nr,nt} and...