A Software-Defined Radio implementation of IEEE 802.11a phisical layer on Gnuradio

• prerequisite:

  gr-gadget

• install gr-wifi-dsss:

cd gr-wifi-ofdm/
mkdir build
cd build
cmake ..
make
sudo make install

cd examples and run the scripts in the folder.

• 'wifi_ofdm_usrp_tx.grc': Transmitter script. Require one USRP connected to your computer.
• 'wifi_ofdm_usrp_rx.grc': Receiver script. Also require one USRP connected.

The prototype supports the following data rates:

• 6 Mbps
• 9 Mbps
• 12 Mbps
• 18 Mbps
• 24 Mbps
• 36 Mbps
• 48 Mbps
• 54 Mbps

For convenience, the current version of the prototype use hard-decision decoding in the convolutional-codes decoder and may therefore suffers from several dB bit-error-rate (BER) loss in low signal-to-noise ratio (SNR) regime.