I am going more deeply into the OFDM example, however I cannot figure out which is the bit rate of the usrp. I mean, I know and I can set the bit rate of my application but how fast the packets are sent out by the usrp? How can I evaluate the throughput on the wireless link?
Thanks Vanessa Morgan Redfield-2 wrote: > > On Thu, Jun 9, 2011 at 1:24 AM, vanITA1082 <[email protected]> > wrote: >> >> Thank you! >> >> I found 2 errors in benchmark_ofdm_tx.py: >> >> line 63 should be "sink" >> line 69 should be "samp_rate" >> >> Thanks again >> Vanessa >> >> > > Hi Vanessa, > > One thing you might also have to change is the tx-amplitude in > transmit_path.py. I wasn't having any success until I changed the > range from 0 <= AMPL < 32768 to 0 <= AMPL <= 1. > > I'm interested in whether you have any success with this. I'm > currently able to send something that looks like OFDM, but unable to > demodulate it. > > Thanks, > Morgan > > >> Nick Foster-4 wrote: >>> >>> On Wed, 2011-06-01 at 00:50 -0700, vanITA1082 wrote: >>>> Yes, but they do not work with UHD which is the only way to use my USRP >>>> N210 >>> >>> I just pushed a branch with UHD versions of the OFDM apps: >>> >>> git://github.com/bistromath/gnuradio.git >>> >>> It's in the uhd_ofdm branch. This is untested code, so use at your own >>> risk. I just wanted to illustrate to people how easy it is to move stuff >>> over to UHD. Check the git diffs for a guide on the things that change. >>> Basically the largest change is saying "uhd.usrp_source" instead of >>> "usrp_source", and use sample rate instead of decimation/interpolation >>> factors. These changes apply to ALL the USRP examples, not just the OFDM >>> stuff. >>> >>> Note that this doesn't fix any lingering bitrot which may be in there -- >>> I haven't tried the OFDM examples in a while. I'll get a chance to test >>> them in a day or so. >>> >>> --n >>> >>>> >>>> >>>> Marcus D. Leech wrote: >>>> > >>>> > On 05/31/2011 10:15 AM, vanITA1082 wrote: >>>> >> Thanks. >>>> >> >>>> >> However we are trying to transmit a packet from a usrp n210 to >>>> another >>>> >> usrp >>>> >> n210 and we are searching for examples do to this simple operation. >>>> >> >>>> >> How is it possible that are not out there? Do you know any source of >>>> >> simple >>>> >> examples? >>>> >> >>>> >> >>>> >> Thanks >>>> >> >>>> >> Vanessa >>>> >> >>>> >> >>>> > Dont know what state they're in: >>>> > >>>> > ./gnuradio-examples/python/ofdm >>>> > ./gnuradio-examples/python/ofdm/ofdm_mod_demod_test.py >>>> > ./gnuradio-examples/python/ofdm/plot_ofdm.m >>>> > ./gnuradio-examples/python/ofdm/ofdm_sync.m >>>> > ./gnuradio-examples/python/ofdm/benchmark_ofdm_rx.py >>>> > ./gnuradio-examples/python/ofdm/benchmark_ofdm_tx.py >>>> > ./gnuradio-examples/python/ofdm/gr_plot_ofdm.py >>>> > ./gnuradio-examples/python/ofdm/benchmark_ofdm.py >>>> > ./gnuradio-examples/python/ofdm/ofdm_sync_pn.m >>>> > >>>> > >>>> > >>>> >>> >>>> > >>>> > >>>> > -- >>>> > Marcus Leech >>>> > Principal Investigator >>>> > Shirleys Bay Radio Astronomy Consortium >>>> > http://www.sbrac.org >>>> > >>>> > >>>> > >>>> > _______________________________________________ >>>> > Discuss-gnuradio mailing list >>>> > [email protected] >>>> > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio >>>> > >>>> > >>>> >>> >>> >>> >>> _______________________________________________ >>> Discuss-gnuradio mailing list >>> [email protected] >>> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio >>> >>> >> >> -- >> View this message in context: >> http://old.nabble.com/OFDM-on-USRP2-tp30638994p31807479.html >> Sent from the GnuRadio mailing list archive at Nabble.com. >> >> >> _______________________________________________ >> Discuss-gnuradio mailing list >> [email protected] >> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio >> > > _______________________________________________ > Discuss-gnuradio mailing list > [email protected] > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio > > -- View this message in context: http://old.nabble.com/OFDM-on-USRP2-tp30638994p31885976.html Sent from the GnuRadio mailing list archive at Nabble.com. _______________________________________________ Discuss-gnuradio mailing list [email protected] https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
