On 8/5/14 6:38 PM, Rubens Kuhl wrote: On Tue, Aug 5, 2014 at 9:49 AM, Gino Villarini <g...@aeronetpr.com <mailto:g...@aeronetpr.com>> 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 > _______________________________________________ > Wireless mailing list > Wireless@wispa.org > http://lists.wispa.org/mailman/listinfo/wireless 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! Mobile: 617-285-0433 Skype: brough netBlazr Inc. <http://www.netblazr.com/>| Google+ <https://plus.google.com/102447512447094746687/posts?hl=en> | Twitter <https://twitter.com/#%21/brough> | LinkedIn <http://www.linkedin.com/in/broughturner> | Facebook <http://www.facebook.com/brough.turner> | Blog <http://blogs.broughturner.com/> | Personal website <http://broughturner.com/>
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