snr2ber.m

放大转发协同通信的有关仿真代码

function y = snr2ber(x)
% Calculates the BER of the channel
global signal;
switch signal.modulation_type
case 'QPSK'
y = q(sqrt(x));
case 'BPSK'
y = q(sqrt(2 * x));
otherwise
error(['Modulation-type unknown: ', signal.modulation_type])
end