For a MISO with N_t transmit antennas, system with transmit beamforming in Rayleigh fading, with total power shared equally between transmit antennas, will the BER have the same form as a the 1xN_r (Nr=no of recieve antenns) MRC (SIMO) BER equation given in Proakis except that the Average SNR be scaled by N_t ( no of transmit antennas) . ?