Hi,
We are experimenting with ofdm transmission and reception. We are using benchmark_tx.py and benchmark_rx.py for transmission and reception in the examples folder of gnuradio ( /usr/local/share/gnuradio/examples/digital/ofdm). We are able to transmit and receive succesfully. Tracing the benchmark programs that we mentioned above, we found that it uses the ofdm.py program located at (/usr/local/lib/python2.7/dist-packages/gnuradio/digital) .
However, we see that there is another implementation of ofdm in ofdm_txrx.py and ofdm_receiver.py.
What is the difference between the two sets of implementations?
Why is the ofdm_txrx.py a hierarchial block?
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Regards
Karan Talasila