Simulink Rectagular QAM Modulator parameters

Hello,

I am trying to implement adaptive modulation for which i need to change the QAM M-Ary parameter dynamically adaptively. How can I do that? I am trying to use the PreLoadfcn, is that the right way? Please help :(

Answer 1

[Kaustubha Govind]

It appears that "M-ary number" is not a tunable parameter on the Rectangular QAM Modulator block - which means it cannot be changed during simulation. You can test this by running a model containing this block with a large stop time (like Inf), and double-click on the block during simulation. If the parameter field is read-only at this point, it means that it is non-tunable. You might need to implement an adaptive algorithm using more basic library blocks.

[madz]

Thank you for the answer :)