Please could you explain the following case. I wonder why the (cell and UE ) throughput sometimes reaches to a (saturation value) with high SNRs , while the throughput should increase with the increase of SNR? for instance, I did a simulation test with 4×8 antennas and 1.4MHz with 2 users and up to 40dB SNR. The results show that the throughput of the UEs and the cell was saturated up to 8.5 MHz for UE and 17 MHz for the cell ! between (25 to 40 dB) SNRs.
Please, what is the reason for this saturation at the high SNRs?