Hi, you can use gr-ieee802-11 [1] to generate WiFi frames. Just start the TX flow graph and pipe the output to a file. I uploaded a frame (IQ data, no noise) [2] for you that you can use to get started.
I don’t use Matlab, so i don’t know how to import the data, but you can display the IQ samples with od -fw8 frame.bin There is also a GNU Radio script [3] that might be helpful. Hope it helps, Bastian [1] https://github.com/bastibl/gr-ieee802-11 [2] https://www.ccs-labs.org/~bloessl/frame.bin [3] https://github.com/gnuradio/gnuradio/blob/master/gr-utils/octave/read_complex_binary.m On 02 Oct 2014, at 17:25, Ernest Szczepaniak <ernest_szczepan...@wp.pl> wrote: > Greetings engi's! > > I'm currently working on my masters (802.11 wlan receiver with > MATLAB/USRPN210). After creating all the important stuff ie: > > -symbol finder > -time synchronization > -coarse and fine frequency compensation > -symbol demodulator > -deinterleaver > -Viterbi decoder > -descrambler etc. > -MAC layer decoding > > i'm looking for any tested 802.11 a/g IQ signal for further research > becouse live samples captured by USRP seem to have incorrect result's > (wrong frame type MAC field, random MAC adress, CRC, parity bits etc). > > And here comes my 1st question. > > Is there any place where i can get some real, tested IQ wlan signal i > a/g standard and full description (rate, coded data, adresses, included > MAC fields)? Tried with Agilent Signal Studio but files are saved in > .wfm encrypted format :( > > I also found GRC beacon frames transmitter, written in GRC > > http://rrsg.ee.uct.ac.za/members/jwamicha/gr-wlan.tar.gz > > but due to having GRC 3.7 (where 'gnuradio-core' was repleaced with > 'gnurdaio-runtime') i can't simply compile this file becouse of an > error: > > --------------------------------------------------------------------------- > > checking for GNURADIO_CORE... configure: error: Package requirements > (gnuradio-core >= 3) were not met: > > No package 'gnuradio-core' found > > Consider adjusting the PKG_CONFIG_PATH environment variable if you > installed software in a non-standard prefix. > > Alternatively, you may set the environment variables > GNURADIO_CORE_CFLAGS > and GNURADIO_CORE_LIBS to avoid the need to call pkg-config. > > --------------------------------------------------------------------------- > It seems that those binaries arent compatible with my GRC version :( > > Any helpful guy to install this library and send me IQ signal of this > beacon frame? (in any MATLAB readable format - simple file sink in GRC). > > Looking forward for any reply. > > Thanks > > > _______________________________________________ > Discuss-gnuradio mailing list > Discuss-gnuradio@gnu.org > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio > -- Dipl.-Inform. Bastian Bloessl Distributed Embedded Systems Group University of Paderborn, Germany http://www.ccs-labs.org/~bloessl/ _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
