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Ed's View - Cognitive Radio: What it Means to HDTV

Started by Ed Milbourn • Aug 5, 2009 • 2 posts
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#1
"Cognitive Radio." What a strange, oblique name for one of the greatest technology advances in telecommunications since Ma Bell decided that ones and zeros made better use of our precious spectrum (over both wired and wireless media) than wavy, wriggly voltage changes. Clearly, the academics who coined the name failed PR101. Why not call it "Smart Radio" - because that's what it is - really smart radio. So, I'll compromise in this wheeze on the subject by cowardly retreating into the technical acronym morass - henceforth tagging "Cognitive Radio" as "COR" and its TV version as "COTV."

The precise definition of COR...

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#2
This is the first I've heard about this concept and I'd like to thank HDTV Magazine for bringing this important concept to our attention.

If I understand this concept correctly, COR or COTV would be built around the concept of station identification rather than frequency allocation in the case of COR, or instead of channel identification in the case of COTV. I can see how this concept would apply to radio, but does it really apply to HDTV?

Is this concept really relevant to those of us, like myself, who receive HDTV over satellite? In fact I don't even see how it would apply to over the air HDTV. Given the bandwidth of HDTV, how would spectrum allocation be handled in an era of COTV, and how would the viewer be guaranteed that he could even receive a signal?

:?