I plan to write the scheduler in MATLAB. It could be something like Weighted Rate Scheduler, or a Weighted Round Robin scheduler. This will use network measurements such as SINR from NetSim, and return the UE allocation. It should be done on a per-TTI basis.
The NetSim user manual (https://www.tetcos.com/help/v13.2/index.html) explains the NetSim - MATLAB interfacing.
You will need to code within this carefully by passing the right parameters to and from between NetSim and MATLAB, since what you ask looks like online coupling between the two.
Please see https://www.researchgate.net/post/How_can_I_implement_my_own_5G_MAC_scheduler_in_a_5G_simulator_Can_I_use_ML
The existing NetSim MATLAB interface APIs, allow exchanging variables as strings. I can send large arrays as strings from NetSim to MATLAB. However, it slows down simulations considerably.
On the other hand, say if MATLAB has a output variable which is a 100*1 matrix, then to get the values in NetSim, I am having to iterate 100 times to get each entry in the array. This is time consuming and slows down simulation.
I am looking for a more effective way of exchanging parameters between NetSim and MATLAB.
An effective way to exchange parameters between NetSim and MATLAB is to pass parameters as a stream of bytes instead of strings.
Therefore, when NetSim is getting a matrix of a specific dimension and shape from MATLAB, it can be received in the form of bytes by the MATLAB Interface process which can in turn form an equivalent C variable for NetSim to process. Similarly, when a NetSim variable is passed to MATLAB it can be passed as a string to the MATLAB Interface process which can reshape it based on the dimension and shape to a respective MATLAB matrix.
Possibly useful link: https://tetcos.com/5g-scheduling-throughput-and-fairness.html
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