OT: (is this OT?) udpate - [news item: "60 miles"] (was: Re: [...] municipal wifi woes)
Mike Schwartz
schwartz at acm.org
Mon Mar 24 16:01:57 MST 2008
On Mon, Feb 25, 2008 at 2:03 PM, Craig White <craig at tobyhouse.com> wrote:
> On Mon, 2008-02-25 at 13:42 -0700, Joshua Zeidner wrote:
> > On Mon, Feb 25, 2008 at 1:27 PM, Craig White <craig at tobyhouse.com> wrote:
> > > On Mon, 2008-02-25 at 11:28 -0700, Joshua Zeidner wrote:
> > > > On Mon, Feb 25, 2008 at 11:11 AM, Mike Schwartz <schwartz at acm.org> wrote:
> > > >
> > > > > [4] "[...] the municipal Wi-Fi market isn't dying. [...] But, [...]
> > > > > "taxpayers have lost so far." "
> > > > > --
> > > > > Mike Schwartz
> > > >
> > > > as I've noted on this list before, Muni Wifi was pronounced dead
> > > > before it was ever even born. [...]
> > > ----
> > > Obviously the consumer was the last consideration of Tempe's Muni WiFi
> > > system [...]
> >
> > As was pointed out on the AZIPA list, the contractor that was chosen
> > was not even an AZ in-state contractor [...]
> > >
> > > Lessig discussed the last mile [...]
> >
> > Can we have some names here? [...]
> ----
> [...] There seems to
> be a quick charge to the blame game [...]
>
> Craig
> ---------------------------------------------------
> PLUG-discuss mailing list - [...]
Here's a news item: at
http://technews.acm.org/archives.cfm?fo=2008-03-mar/mar-24-2008.html#354574
it says: <<
"Intel Researchers Stretch Wi-Fi to Cover 60 Miles
Network World (03/20/08) Cox, John
Intel recently demonstrated an 802.11 radio link with a data rate of
approximately 6 Mbps and a range exceeding 60 miles. Intel facilitated
this rural connectivity platform (RCP) with off-the-shelf hardware and
modified the underlying 802.11 media-access-control layer to boost the
signal's efficiency. This involved the addition of a method known as
time division multiple access (TDMA) that is currently used in GSM
cellular networks and which splits the channel into time slots and
puts the sending and receiving radios in sync, effectively eliminating
waiting for acknowledgments and resending of data. The TDMA technique
extends the range by minimizing the wireless overhead and opening up
more bandwidth for data transmission. The RCP units can function as
endpoints that bookend each link or as relay stations to effect
signal-hopping. The RCP software uses an operating system based on the
SnapGear embedded Linux distribution. Pilot RCP deployments have been
established in India, Vietnam, Panama, and South Africa. RCP, which
Intel Research and Intel's Emerging Markets Platform Group has been
working on for around two years, is one of several efforts to extend
the Internet into rural regions, especially in developing nations,
through the employment of low-cost, low-power Wi-Fi radios."
>>
...and the final "Click Here to View Full Article" is a hyper link to
http://www.networkworld.com/news/2008/032008-intel-wi-fi-60-miles.html
(where you may want to click on "Print"; -- (even to read it on-screen))
[quote] [the first sentence]:
<< "Intel recently demonstrated a modified 802.11 radio link with a
data rate of around 6 Mbps and a range of more than 60 miles." >>
--
Mike Schwartz
Glendale AZ
schwartz at acm.org
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