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In the example code wl_example_siso_ofdm_txrx.m on the official website, we can see that the indexes of pilot subcarriers and data subcarriers are shown below. What should I do when I need to send an empty subcarrier, such as #38 subcarrier.
SC_IND_PILOTS=[8 22 44 58];% Pilot subcarrier indices
SC_IND_DATA=[2:7 9:21 23:27 39:43 45:57 59:64];% Data subcarrier indices
I tried setting SC_IND_DATA=[38], I am not clear whether such a method can send a single subcarrier.
Thanks.
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First, please do not post the same question twice.
Modifying the SC_IND_ variables is the correct place to start with changing subcarrier allocation in the OFDM example scripts. That script can be used in simulation (WARPLab + hardware is not required) - this is an ideal setup to explore waveform-level changes and understand the effects at each stage of the Tx/Rx processing.
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ok, I see. I will have a try. Thanks for your reply.
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