In this file there are two m-files.One is function and other is program. So during running the program save both file in same folder.First open the function rect ,then and run the ber_QAM file. You will get the required result.
Here simulation is performed for 10,000 symbols in the presence of
additive Gaussian noise at different values of SNR.
Download apps, toolboxes, and other File Exchange content using Add-On Explorer in MATLAB.