search

Sonohi / monster

MONSTeR is a framework built around the LTE system toolbox available in Matlab
MIT License
23 stars 9 forks source link

SINR scaling issues with 3GPP antenna array #100

Closed jakthra closed 5 years ago

jakthra commented 5 years ago

The SINR value ranges are low given the channel conditions. A maximum of 16 dB SINR is observed when using the 3GPP 38.901 defined antenna propagation pattern.

It is expected that positions closer to the station are of higher SINR dB value. This is furthermore shown by plotting only one station. Additionally, the interference considered between stations seems excessive. This could indicate a radiation pattern with a wrongly defined cutoff.

SINR example 2 SINR example

jakthra commented 5 years ago

This seems to be caused by intra-cell interference, thus the width of the antenna radiation patterns is not penalized enough. This can be visualized by plotting just 1 sectorized antenna and 1 omni station. The omni directional antenna is roughly 30 dB lower than the sectorized, which corresponds to it having an absolute worst case gain profile. (0 dB gain) 1 sectorised antenna omni antenna

jakthra commented 5 years ago

I'm closing this issue and opening an issue on the radiation patterns of the sectorised antenna