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From: | Doug Geiger |
Subject: | Re: [Discuss-gnuradio] Re: USRP2 802.11 BBN code on the TX side |
Date: | Mon, 14 Dec 2009 14:25:53 -0500 |
User-agent: | Thunderbird 2.0.0.23 (Windows/20090812) |
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>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.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
Doug -- Douglas Geiger Code 5545 U.S. Naval Research Laboratory Washington, DC 20375 (202) 767-9048 address@hidden
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