function SNR_dsVSopenVSclosed
clear
snr_in_dB1=0:1:10;
snr_in_dB2=0:1:10;
snr_in_dB2=0:1:10;

for i=1:length(snr_in_dB1)
    [dscdma_ber]=dscdmabpsk(snr_in_dB1(i));
    dscdma_ber_prb(i)=dscdma_ber;
end

for i=1:length(snr_in_dB2)
    [dscdma_open_ber2]=dscdma_open_looptest2(snr_in_dB2(i));
    dscdma_open_ber2_prb(i)=dscdma_open_ber2;
end

for i=1:length(snr_in_dB3)
    [dscdma_closed_ber1]=dscdma_closed_looptest1(snr_in_dB3(i));
    dscdma_closed_ber1_prb(i)=dscdma_closed_ber1;
end
semilogy(snr_in_dB1,dscdma_ber_prb,'-*r');
hold
semilogy(snr_in_dB2,dscdma_open_ber2_prb,'-og');
semilogy(snr_in_dB3,dscdma_closed_ber1_prb,'-+b');
xlabel('SNR(dB)');ylabel('BER');
legend('dscdma','open','closed',0);grid;