I need to feed a digital predistorter with significative signals for testing purposes. Do you know any (simple) libraries/softwares that would allow me to generate W-CDMA or SC-FDMA-QAM I/Q baseband data?
It doesn't have to be real-time... a large enough buffer of I/Q values on which I would loop would be sufficient. Any software solution to that problem?
The simplest is to use Simulink to generate **broken link removed**. Other options include specific Matlab, Octave code.
Further there are also C++ codes. All depends on your budget and time limitations.
All of them support offline as well as quasi-real-time analysis, so that should not be much of a hassle.