able to receive OFDM 802.11g raw data

By setting up two USRP2 communication through SMA cable.

Transmitter: ftw_802.11_ofdm_tx code
$ sudo ftw_ofdm_tx.py --interface=eth0 --mac-addr=USRP2 MAC ADD --gain=10 --freq=2.412e9 --interp=5 (default for 802.11a/g) --payload="YOUR Message" --regime=3(QPSL, r=0.5) --repetition=100000 (number of frames to send) | sudo tee /YOUR location/output.txt

Receiver: observed by usrp2_fft.py

Next step is to collect all the features of OFDM.