The output file (the .iq file) does not store the signals as the whole file is zeros. When I add the Gaussian noise to the signals, the output is the Gaussian noise without the signals. I’m wondering if that is because of the license (this is the temporary license on my laptop).
The first ~ 100ms are equal to zeros because of the propagation time.
If the simulation starts at time 0, the receiver will receive the signal only after 0+ propagation time.
If we make an offset of 200ms from the start of the file - we will not have 0.
If the file still remains at zero after a simulation time, then it may be a configuration problem. Then you can send your configuration to our support team and we could better understand the problem.