Re: [Discuss-gnuradio] Re: USRP2 802.11 BBN code on the TX side

[Doug Geiger]

George Nychis wrote:
> http://cyprus.cmcl.cs.cmu.edu/~gnychis/mfilter/bbn_with_probes.tar.gz 
> <http://cyprus.cmcl.cs.cmu.edu/%7Egnychis/mfilter/bbn_with_probes.tar.gz>
>
> Sorry, make clean it before building... trying to get this out ASAP 
> since I will be AFK for the next 6 hours or so.
>
> Just run bbn_80211b_transmit.py ... default parameters should work. I 
> commented out some code which loops sending the packet several times 
> to help test.
>
> The decodable packet should look like this:
> http://cyprus.cmcl.cs.cmu.edu/~gnychis/mfilter/probe_response.pcap 
> <http://cyprus.cmcl.cs.cmu.edu/%7Egnychis/mfilter/probe_response.pcap>
>
> - George
Interesting - I'm able to capture this with my airpcap (just a 30dB 
attenuator and some coax in-between my USRP2 and the airpcap). Lots of 
errors (either due to a screwy scrambler function, or something causing 
a high bit-error rate. For this one test, everything after the Source 
Address (i.e. starting with the BSSID) is wrong.
Doug

--
Douglas Geiger
Code 5545
U.S. Naval Research Laboratory
Washington, DC 20375
(202) 767-9048
address@hidden