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hello,
I am looking at the wl_example_mimo_ofdm_txrx.m code.
but, i cannot understand how the demodulation of 64-QAM is implemented in the following:
demod_fcn_16qam = @(x) (8*(real(x)>0)) + (4*(abs(real(x))<0.6325)) + (2*(imag(x)>0)) + (1*(abs(imag(x))<0.6325));
can someone give hint?
Thanks
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I have used the another matlab function to implement my M-QAM. Thanks.
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That lambda function implements the mapping of complex-valued 16-QAM symbols to 4-bit integers. The mapping is the same as in IEEE 802.11, where each bit of the 4-bit value is dependent only on the real or imaginary part. Each bit is computed by comparing the real or imaginary part to a threshold (0 or 0.6325).
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