On 8/5/14 6:38 PM, Rubens Kuhl wrote:
On Tue, Aug 5, 2014 at 9:49 AM, Gino Villarini <[email protected]
<mailto:[email protected]>> wrote:
http://www.mimosa.co/home/b5-page.html
How to operate an outdoor radio with 4 spatial streams with
dual-polarized antennas ? It seems I'm missing something...
Rubens
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Rubens,
It appears they get their four independent streams using two polarities
(H&V) of each of two channels (i.e. two different frequency bands).
That should work, assuming correct channel state information (CSI) is
fedback for each separate stream. Apparently Mimosa is using the
Quantenna chips which are claimed to do just that, so this is very
plausible (and very impressive!). Of course, this does mean finding
more 5 GHz spectrum, but running two separate 40 MHz radios with MIMO is
a more robust way to use 80 MHz of 5 GHz spectrum than running an 80 MHz
channel directly.
--
Thanks,
Brough
Brough Turner
netBlazr Inc. -- Free your Broadband!
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