sub_ef.m

alamouti 空频分组码---在时变信道下SFBC-OFDM

% subplot the Error Floor
fm = 0:100:1000;
% JML
subplot(2,2,1),semilogy(fm, BER_JML, 'bs', fm, BER_JML_new, 'r>', F, T_BER_OFDM, 'k-.', F, T_BER_JML, 'b', F, T_BER_JML_new, 'r');
xlabel('Fd');ylabel('BER');
legend('Con. JML','Imp. JML','1Tx+1Rx');
title('Joint Maximum-Likelihood Detection');
grid on;

% SML
subplot(2,2,2),semilogy(fm, BER_SML, 'bs', fm, BER_SML_new, 'r>', F, T_BER_OFDM, 'k-.', F, T_BER_SML, 'b', F, T_BER_SML_new, 'r');
xlabel('Fd');ylabel('BER');
%legend('Con. SML','Imp. SML','1Tx+1Rx');
title('Simple Maximum-Likelihood Detection');
grid on;

% ZF
subplot(2,2,3),semilogy(fm, BER_ZF, 'bs', fm, BER_ZF_new, 'r>', F, T_BER_OFDM, 'k-.', F, T_BER_ZF, 'b', F, T_BER_ZF_new, 'r');
xlabel('Fd');ylabel('BER');
%legend('Con. Detec.','Imp. Detec.','1Tx+1Rx');
title('Zero Force Detection');
grid on;

% DF
subplot(2,2,4),semilogy(fm, BER_DF, 'bs', fm, BER_DF_new, 'r>', F, T_BER_OFDM, 'k-.', F, T_BER_DF, 'b', F, T_BER_DF_new, 'r');
xlabel('Fd');ylabel('BER');
legend('Con. Detec.','Imp. Detec.','1Tx+1Rx');
title('Decision Feed-back Detection');
grid on;