receiver.m

MIMO-OFDM 信道的自适应仿真程序

function [soft_bits] = receiver(rx_signal,Modulation,H,ll, s,n_tx,n_rx);

%global sim_consts;
%4.10把下面调制方式的判断提到此处（原在rx_demodulation）
if ~isempty(findstr(Modulation, 'BPSK'))
    K=2;
elseif ~isempty(findstr(Modulation, 'QPSK'))
    K=4;
elseif ~isempty(findstr(Modulation,'16QAM' ))
    K=16;
else
    K=64;
end



    % receiver diversity processing
%4.10增加了s,用于空时解码最大似然估计

if n_tx == 1
    sym_for_dem=rx_signal/H;
elseif n_tx == 2
    sym_for_dem = rx_diversity_proc1(rx_signal,Modulation,H,ll,s, K);
elseif n_tx==4
    sym_for_dem = rx_diversity_proc2(rx_signal,Modulation,H,ll,s, K);
end
% Demodulate
soft_bits = rx_demodulate(sym_for_dem,Modulation);

clear sym_for_dem
clear modulation