[opendtv] Re: F.C.C. Likely to Open Airwaves to Wireless
- From: Albert Manfredi <albert.e.manfredi@xxxxxxxxxx>
- To: <opendtv@xxxxxxxxxxxxx>
- Date: Tue, 14 Sep 2010 21:47:00 -0400
Craig Birkmaier posted:
http://www.nytimes.com/2010/09/13/technology/13wifi.html?_r=1&th&emc=thToward
the bottom it says:
"Exactly how the F.C.C. has addressed those objections will not be known until
the new rules are released at the Sept. 23 meeting. But people in the
telecommunications industry who keep close tabs on the agency say they expect
that the searching requirement will be abandoned, and that wireless microphones
will be given certain transmission priorities."
This is what I was hoping they would do. Scrap the whole auto-detection idea
and go only with the geolocation database. But how wireless mikes will be
accommodated I don't know.
"Blair Levin, a fellow at the Aspen Institute and a former F.C.C. official,
said that although there was no guarantee that the new airwaves would produce
the technological gold rush that somesupporters have expected, ..."
Not to forget that each WiFi channel is 20 MHz wide - the equivalent of more
than three adjacent TV channels. So honestly, I don't know why the FCC hypes
this white spaces idea so much. Long range, perhaps, but you're only going to
get very few WiFi networks in those "white spaces," and each will only offer so
much b/s of shared capacity. You can't assume MIMO will work so well, when
widely distributed users will be sharing the channel.
Bert
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