hardviterbiqpskinawgn.m

Hard Viterbi QPSK in AWGN, Rayleight soft Viterbi QAM in AWGN, Rayleight viterbi QAM in AWGN, Rayl

SNR=[-5:1:10];
snr = 10.^(SNR/10); 
result_qpsk = fopen('result_qpsk_ViterbiSoft.txt','r');
BER_qpsk = fscanf(result_qpsk,'%g');
fclose(result_qpsk);
theo_qpsk=0.5*erfc(sqrt(snr));
semilogy(SNR,BER_qpsk,'r-*')
xlabel('SNR [dB]')
ylabel('BER')
hold on
grid on
semilogy(SNR,theo_qpsk,'b-o')
hold on
grid on