64-QAM Modulation and Demodulation
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Here's example of Quadrature Amplitude Modulation with Bit Inputs:
M = 64;
bitsPerSym = log2(M);
x = randi([0 1],10*bitsPerSym,1); % x is input variable
% modulation
y = qammod(x,M,'bin','InputType','bit','OutputDataType', ...
numerictype(1,16,10));
% demodulation
z = qamdemod(y,M,'bin','OutputType','bit');
s = isequal(x,double(z))
The theory of 64 QAM is to transmit data with 8 bits per symbol.
My question, if the data I generate is not a multiple of 8 (like 61 bits), how can I do 64 QAM transmission?
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