Hi,

In benchmark_ofdm_tx.py, I heard that the middle number of subcarriers among
the occupied_tones is alloacted to carry actual data, and the frequency band
of each subcarrier depends on the interpolation rate.
does it mean that if I change the occupied tones, I can control the number
of subcarriers that carry actual data while having same the total number of
subcarriers?
and if that's true, how can I distinguish and analyze the subcarriers which
carry data and which doesn't carry data?
Thanks.

James,
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