Unable to resolve the name comm.AWGNChannel

Hello all,

I have recently upgraded matlab to the R2020b and for some reason it is not able to run the Gaussian noise signal comm.AWGNChannel.

I am literally running it as Matlab documentation shows at https://ch.mathworks.com/help/comm/ref/comm.awgnchannel-system-object.html#mw_a71cdaad-effb-478f-8bb3-3e94524e3740_head as :

channel = comm.AWGNChannel('NoiseMethod','Variance', ...
'VarianceSource','Input port');

Does anyone know how to fix this?

Thank you in advance,

Ricardo

Answer 1

[Maadhav Akula]

Hi,

Try the following command:

which -all comm.AWGNChannel

This should return the location of the file of AWGNChannel.m

Also, try the following command to check whether you have the Communications Toolbox installed or not:

ver('comm')
license('test','communication_toolbox')

This will return the Communications Toolbox version and 1 if you have access to the Communications Toolbox.

Hope this helps!