Simple warehouse model with 20 shelves SINR query

[Rahul Singh Gulia]

Hi Team,

I created a simple indoor warehouse building in NS-3 using the "buildings" module. Here is a model of the simulated warehouse with 20 shelves, and the Access Point is in the middle of the warehouse. 

And the AP was at 5m and the user was at 1m from the ground. For this setup, I saw this heatmap for an isotropic antenna system.

I can see a high SINR value in the East-West direction LOS path due to strong LOS signals, but why is it not valid for the North-South LOS path case. 

I would really appreciate any kind of suggestion or input on my findings. Looking forward to hearing back from you.

Thank you,

Rahul