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From: | Marcus D. Leech |
Subject: | Re: [Discuss-gnuradio] building carrier sense in the FPGA and UHD |
Date: | Sun, 04 Mar 2012 10:01:42 -0500 |
User-agent: | Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.24) Gecko/20111108 Fedora/3.1.16-1.fc14 Thunderbird/3.1.16 |
I think a more fundamental issue is that "carrier sense" isn't actually defined in any kind of general way. Certainly for *some* types of PHYs, you can do simple energy-presence detection. But usually, it's more complicated than that, and it varies widely from PHY to PHY. In some, you'll need to run a correlator before you even know whether the channel is busy or not. In others, simple energyGeorge, I do think we need something like what you have suggested but I am still a bit puzzled about the right way of implementing it. Best regards, Andre
detection works.I don't think there's a general-purpose way of doing this, but that's just my POV.
-- Marcus Leech Principal Investigator Shirleys Bay Radio Astronomy Consortium http://www.sbrac.org
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