Your average Wi-Fi AP comes with a 3dBi antenna or even a unity gain antenna... every 3-dB increase is double the power...
The trick though isn't that its pointing a 10dBi antenna pattern at a client, its that its taking it one step further and pointing that at the best possible path to the client, which in an indoor environment is rarely the most direct path. I could pull out a few graphs that Ruckus has done to illustrate the point... but the Toms Hardware article is the most unbiased review of the gear out there Daniel White 3-dB Networks http://www.3dbnetworks.com -----Original Message----- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of os10ru...@gmail.com Sent: Sunday, November 22, 2009 4:02 PM To: WISPA General List Subject: Re: [WISPA] Indoor deployment question Seems hard to believe that if I took a 10dbi antenna which isn't all that much gain and put it on my AP and pointed it at my client I'd see that much of a gain. Greg On Nov 22, 2009, at 5:43 PM, 3-dB Networks wrote: > There are over 4,000 antenna patterns, with the relative gain of the best > ones up to 10dBi... the magic is though that the AP also uses the patterns > they transmit on to receive on... so the gain is bi-directional instead of > blasting the signal out but not having any mechanism in place for the client > to be heard. The AP can also selectively put noise in up to a -15dBi > null... which can be helpful. > > I would be curious in what indoor environment there isn't multi-path :-) > > Anyways, if you have doubts... Tom's Hardware (which is as unbiased as it > gets) did some testing against Cisco and Aruba. If you want to see the > power of beamforming, I'd encourage you to read this article all the way > through. It gives a very detailed explanation of the magic behind Ruckus. > > http://www.tomshardware.com/reviews/beamforming-wifi-ruckus,2390.html > > > Daniel White > 3-dB Networks > http://www.3dbnetworks.com > > > -----Original Message----- > From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On > Behalf Of os10ru...@gmail.com > Sent: Sunday, November 22, 2009 3:26 PM > To: WISPA General List > Subject: Re: [WISPA] Indoor deployment question > > Does Ruckus state their antenna gain anywhere? If their "beam forming" gain > isn't all that much higher than the competition's omni gain then the > performance couldn't be all that much better unless there's noise or multi > path issues. > > Greg > > On Nov 22, 2009, at 5:13 PM, 3-dB Networks wrote: > >> Depends on your definition of economical :-) >> >> Ruckus has meshing built in to all of their AP's... plus with the antenna >> array built into these babies you can usually get by with deploying 1/2 as >> many AP's... so it can end up costing less than a roll your own Mikrotik >> system >> >> Daniel White >> 3-dB Networks >> http://www.3dbnetworks.com >> >> >> -----Original Message----- >> From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On >> Behalf Of Mike Hammett >> Sent: Sunday, November 22, 2009 3:01 PM >> To: wireless@wispa.org >> Subject: [WISPA] Indoor deployment question >> >> I would prefer copper to link indoor APs. If that won't work due to either >> technical issues or the customer just plain doesn't want holes drilled, is >> WDS pretty much the only financially viable alternative that properly >> bridges the network? Could do a boat-load of PtP links, but that'd be >> silly. >> >> >> ----- >> Mike Hammett >> Intelligent Computing Solutions >> http://www.ics-il.com >> >> >> >> > ---------------------------------------------------------------------------- >> ---- >> WISPA Wants You! Join today! >> http://signup.wispa.org/ >> > ---------------------------------------------------------------------------- >> ---- >> >> WISPA Wireless List: wireless@wispa.org >> >> Subscribe/Unsubscribe: >> http://lists.wispa.org/mailman/listinfo/wireless >> >> Archives: http://lists.wispa.org/pipermail/wireless/ >> >> >> >> > ---------------------------------------------------------------------------- > ---- >> WISPA Wants You! Join today! >> http://signup.wispa.org/ >> > ---------------------------------------------------------------------------- > ---- >> >> WISPA Wireless List: wireless@wispa.org >> >> Subscribe/Unsubscribe: >> http://lists.wispa.org/mailman/listinfo/wireless >> >> Archives: http://lists.wispa.org/pipermail/wireless/ > > > > ---------------------------------------------------------------------------- > ---- > WISPA Wants You! Join today! > http://signup.wispa.org/ > ---------------------------------------------------------------------------- > ---- > > WISPA Wireless List: wireless@wispa.org > > Subscribe/Unsubscribe: > http://lists.wispa.org/mailman/listinfo/wireless > > Archives: http://lists.wispa.org/pipermail/wireless/ > > > > ---------------------------------------------------------------------------- ---- > WISPA Wants You! 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