running OFDM on USRP2

The example provided with the gnuradio codebase requires small
modifications in order to work with USRP2. You can try with the
modifications I made:

www.cs.ucsb.edu/~veljko/downloads/ofdm_example.tar.gz

In my case with XCVR2450 daughter boards running the following works fine:

transmitter:
benchmark_ofdm_tx_new.py -f 2.45G --tx-amplitude 0.9 -M 8 -s 200 -m
bpsk --fft-length=512 --occupied-tones=80 -i 64 --tx-gain=10
--cp-length=128

receiver:
benchmark_ofdm_rx_new.py -e eth1 -f 2.45G -m bpsk --fft-length=512
--occupied-tones=80 -d 64 --rx-gain=30 --cp-length=128

You can try with the transmitter only first and usrp2_fft.py on the
other end, just to see if there's something getting transmitted and if
it looks like OFDM.

cheers,


veljko


http://www.mail-archive.com/discuss-gnuradio@gnu.org/msg22592.html
http://www.mail-archive.com/discuss-gnuradio@gnu.org/msg22793.html
http://www.mail-archive.com/discuss-gnuradio@gnu.org/msg22609.html
http://www.mail-archive.com/discuss-gnuradio@gnu.org/msg22811.html

A few more from Bin Zan:
http://old.nabble.com/the-gnuradio-ofdm-receiver-td27526241.html#a27526241
http://old.nabble.com/question-about-ofdm-subcarrier-mapping-td27630888.html#a27630888
http://old.nabble.com/user/UserPosts.jtp?user=1589439