I am confusing with send_pkt and payload.
How can i load the data that I want to transmit in the packet? and
with received data using benchmark_ofdm_rx.py?
what I tried is adding file_sink to compare the transmit and the receive
data, but it seems I can do more with send_pkt.
Also, would it be possible to choose one subcarrier that I want to use
Thank you for your kine help.