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Re: [Discuss-gnuradio] building carrier sense in the FPGA and UHD

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
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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,

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 energy
  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

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