Can the function comm.linearEqualizer of MATLAB equalize 16QAM signals with CMA algorithm ?

I want to use CMA to equalize 16QAM signals. Does comm.linearEqualizer come with MATLAB to support 16QAM ?
Is the following statement true ? Thanks a lot
Constell = qammod((0:M-1)',M);
NonConstell = Constell/abs(Constell(1));
eqlms = comm.LinearEqualizer('Algorithm','CMA',...
'Constellation', NonConstell.',...
'NumTaps',CMAtaps,...
'StepSize',CMAStepSize,...
'InputSamplesPerSymbol',2,...
'WeightUpdatePeriod',2);

Answers (1)

Hi,
According to the details mentioned in the documentation of comm.LinearEqualizer, the 'Constellation' property do not have any such input constraints, you can provide a vector of any input size to this field. Also, the description of the CMA algorithm provided on the same page does not mention any such restrictions. So you can provide 16QAM signals to the comm.LinearEqualizer function.

Products

Release

R2020a

Asked:

on 22 Mar 2023

Answered:

on 6 Apr 2023

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