how to generate a bpsk and qpsk signal in matlab and plz help me writing a c code for fft plz help thanks in advance plzzzzz atleast plz tell me wat is a bpsk signal and how the waveforms will be
it seems that you know nothing about bpsk or qpsk, i recommend you see some text book about digital communication. for example:
Bernard Sklar,
"Digital Communications:Fundamentals and Applications" Second Edition