I need to find out SINR coverage of a 5G area with gNBs. How can I attain coverage for different gNB placement geometries (random, grid etc). I am (new to) and using NetSim software.
NetSim doesn't provide area heat maps, but rather measures SINR wherever UEs are placed.
Therefore, what you can do is to grid the area, and place UEs at the grid points. Then place the gNBs as you want: randomly, hexagonal lattice etc. After this, run the simulation using the radio measurements workspace. This is an instrumented workspace to record various radio parameters. In the XL log, you will see the SINR at all the UEs from the associated gNB.
You could plot a complementary CDF (CCDF) of the SINRs for coverage.
Thank you. I have some follow up questions. (a) How should I choose the grid points assuming my total area under study is 40km*40km? (b) How does the CCDF of SINR give coverage?
Harshita Sharma You can divide the X and Y axis is some number of divisions and grid on that basis. The more the divisions the larger the number of grid points and higher the accuracy. The trade off is that simulation will take longer to complete.
The coverage probability is the probability that a typical mobile user is able to achieve some threshold SINR. Therefore CDF is a measure of outage while CCDF (1 - CDF) is a measure of coverage. So, you can get the SINRs of the different UEs placed on a grid in an XL file. Then it is just a single line of code in MATLAB to get the CDF or CCDF. It will give you the probability of the number of points that are > SINR value. So you can get what percentage of users will see SINR > -5, SINR > 0, SINR > 5, and so on.
I believe the SINR is computed based on association with the BS from which the UE sees the largest power. Is it possible to change the association and then compute SINR?
See this discussion https://www.researchgate.net/post/How_can_I_get_the_5G_coverage_probability_in_NetSim
This shows coverage for the standard 7-cell and 19-cell scenarios https://support.tetcos.com/support/solutions/articles/14000141907-sinr-heatmap-for-a-7-cell-and-a-19-cell-5g-scenario-using-netsim
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