How can I perform QPSK modulation of an .mp3 / .wav file ?

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IKRAM ILYAS
IKRAM ILYAS 2014-5-25
评论： IKRAM ILYAS 2014-5-27
Hello everyone,
I am kind of a novice in MATLAB. I have been trying to perform QPSK modulation of an .mp3 / .wav file and then pass it through an AWGN channel. Can anyone please tell me how to go about this process? Thanks in advance.

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rifat
rifat 2014-5-25
sounds like an assignment problem. anyway... 1. read file using wavread() 2. use modulate() to apply QPSK modulation 3. use awgn() to add noise with a desired SNR 4. use demod() to obtain the received signal.
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rifat
rifat 2014-5-27
then download this file (<http://www.mathworks.com/matlabcentral/fileexchange/33443-qpsk-modulation-in-awgn/content/QPSK.m>)

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