Realistic_Multiuser_MIMO_Simulations.ipynb

[alfa-vesta]

Hi All,

After changing the transmission direction from "uplink" to "downlink" in "Realistic_Multiuser_MIMO_Simulations.ipynb" notebook the BLER/BER become flat with respect to EbNo so any idea why ?

[jhoydis]

Hi,

Can you be more specific with respect to where in the notebook you have made this change?
For downlink transmissions to work, you would probably need to configure some form of transmit precoding, as for example done in this notebook.

[alfa-vesta]

Yes exactly, this what I did. I used ZF precoding for the downlink channel and in "UMi" I set the direction to "downlink"

[jhoydis]

It is very difficult to assess the source of the behaviour from this code snippet. Could you share the full notebook?

[alfa-vesta]

pls find attached notebook
DL_MIMO_Simulation.ipynb.zip