I am trying to do comparison study across different waveform. Example, comparing A (OFDM) and B (f-OFDM). i set up 2 BS and each BS only have 1 UE. I also set the scStr.topology.attenuation to a very large value, example 100 or 1000.
The second simulation i am try to do is do a control experiment to ensure my setting are correct, i am comparing OFDM to OFDM. Again is 2 BS and each BS only have 1 UE. both are set to identical parameters (same sub carriers, same carrier spacing and etc). i notice the BER always have a differences at different SNR. Example i have a different of 4×10^-3 and 8×10^-3 at SNR 38dB. May i know is this normal or i miss out some setting? Should this should we get a identical result for both user? (since same setting is applied to 2 BS)
interesting, thank you for your comment! I have some further questions regarding your issue.
How many frames did you use for this simulation and how big are the confidence intervals at this point at 38dB SNR?
Did you employ a fixed CQI (MCS) or did you use feedback?
Is the schedule of the users the same, i.e., are they scheduled the same amount of subcarriers?
since the BER value is quite low at 38dB SNR, I recommend to try a simulation of this point (only one SNR point to save time) with a high number of frames, e.g., 2000 or even 5000. The values for the two users should be in the same order and the confidence intervals should get quite small.