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Re: [Discuss-gnuradio] GRC 3.6 / 802.11 a/g test signal
From: |
Bastian Bloessl |
Subject: |
Re: [Discuss-gnuradio] GRC 3.6 / 802.11 a/g test signal |
Date: |
Sat, 4 Oct 2014 11:16:57 +0200 |
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 <address@hidden> 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
> address@hidden
> 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/
Re: [Discuss-gnuradio] GRC 3.6 / 802.11 a/g test signal, Ernest Szczepaniak, 2014/10/05
Re: [Discuss-gnuradio] GRC 3.6 / 802.11 a/g test signal, Ernest Szczepaniak, 2014/10/06
Re: [Discuss-gnuradio] GRC 3.6 / 802.11 a/g test signal, Ernest Szczepaniak, 2014/10/06
Re: [Discuss-gnuradio] GRC 3.6 / 802.11 a/g test signal, Ernest Szczepaniak, 2014/10/07