Re: [Discuss-gnuradio] About 80211_mac.tar.gz

[Chen Chen]

Hi Thierry,

There are three version of bbn code: the original, the douglias version and usrp2 version. These three versions all have these two script. So which version is right for the simple_mac.py

I have modified the simple_mac.py in the original bbn code and it works for the usrp. But it seems that the txpath and rxpath is from the class of usrp_transmite_path and usrp_receive_path, not from the bbn 80211 module. It is like the tunnel.py in the gnuradio directory. 

I noticed that in 80211_mac.tar.gz, the simple_mac.py's txpath and rxpath use the bbn transmitting and receiving module, which is different from the simple_mac.py in the original version. Do you know these differences?

Thanks

Chen

On Fri, Oct 23, 2009 at 4:05 PM, <address@hidden> wrote:

Hi Chen

I think  that the 2 files you are mentioning  should be available  when you make install the bbn package.  In my environment, I found them on the PYTHONPATH directory (/usr/local/lib/python2.5/site-packages/)

Hope this helps

Thierry

Chen Chen a écrit :

Hi, Thierry

I noticed that in this directory, simple_mac.py need the script of bbn802_11b.py and bbn802_11b_pkt.py, but these two script are not in this directory. Are these two script from the USRP2 version of bbn code from cgran?

Thanks,

Chen

On Wed, Oct 21, 2009 at 4:50 PM, <address@hidden <mailto:address@hidden>> wrote:

   Hi Chen

   Chen Chen a écrit :

       Hi,
        I see from the mailing list in May 5th, 2009 that Ben Yahmed
       report using the 80211_mac.tar.gz and it works. Does anyone
       know what version of GNU Radio can this script work? Does it
       only for USRP2?
       
   This code works for GNU Radio 3.2 and for USRP2 cards. We didn't
   check with USRP cards, I guess some changes will be required...

       I noticed that there are many version of simple_mac.py in this
       file? Does anyone know the differences between them?
       
   I think that Maher tried to modify a subset of config parameters
   to reduce packet loss observed. The "best" combination should be
   the one included in  the "simple_mac.py" file

   Btw, I don't know if the changes done by Maher have been included
   in the latest bbn source code. If anyone has made any progress on
   the 802.11 code, please keep the mailing list informed.

   Thanks

   Thierry

       Thanks
        Chen
         Here is his mail:
        ->Hi all,

       -> I succeeded to make the simple_mac.py working. now it's pinging
       -> correctly but with a huge loss ratio. At first I disabled
       the carrier
       -> sense functions but after I reactivated them but I'm not
       sure these
       -> functions are working. I attached the 80211_mac folder so
       any suggestion
       -> or amelioration is welcome. I used this command line to run
       the python
       -> file: ./simple_mac.py -S 8 -v

       -> I also hard_coded my mac adress so you need to change it
       before use.
                 
       ------------------------------------------------------------------------

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--
Chen Chen
Dept. of Electrical & Computer Engineering
Lehigh University
Bethlehem, PA 18015

E-mail:address@hidden <mailto:address@hidden>

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-- 
Chen Chen
Dept. of Electrical & Computer Engineering
Lehigh University
Bethlehem, PA 18015
E-mail:address@hidden