Bandwidth wise the channel usage seems to say quite a bit, along with what many have mentioned on whether or not the users within the designated coverage area for an AP would necessarily use it.
According to the Cisco whitepaper http://www.cisco.com/en/US/prod/collateral/wireless/ps5678/ps11983/white_paper_c11-713103.html There’s only 1 80Mhz/Wave 1 configuration that would have more than 1Gb of actual throughput (Table 2) There’s 4 such configurations in 160Mhz/Wave 2, However point 2.3.6 states “We see that in the United States, there are 20 to 25 20 MHz channels, 8 to 12 40 MHz channels, 4 to 6 80 MHz channels, and 1 or 2 160 MHz channels. These numbers are ranges because of the evolving regulatory issues surrounding the different spectrum noted in” So actually requiring more than 1Gbps uplinks seems like it would be a rarity in our environments. I can ‘t see us ever using 160Mhz, except maybe in a very small area with extreme requirements. But hopefully 802.11ad will be out by then. -- Jason Cook The University of Adelaide, AUSTRALIA 5005 Ph : +61 8 8313 4800 e-mail: [email protected]<mailto:[email protected]<mailto:[email protected]%3cmailto:[email protected]>> From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:[email protected]] On Behalf Of Ian McDonald Sent: Monday, 10 February 2014 5:57 AM To: [email protected] Subject: Re: [WIRELESS-LAN] How many drops 802.11ac phase 2 Whether that 1G is divided between 10 or 50 devices, it's still a ton of bandwidth. We appear to be having to increase density to compensate for low client tx outputs, and poor antenna design. Thanks -- ian Sent from my phone, please excuse brevity and misspelling. ________________________________ From: Julian Y Koh<mailto:[email protected]> Sent: 09/02/2014 16:56 To: [email protected]<mailto:[email protected]> Subject: Re: [WIRELESS-LAN] How many drops 802.11ac phase 2 On Feb 9, 2014, at 02:29 , Ian McDonald <[email protected]<mailto:[email protected]>> wrote: > > Design guides now are indicating an access point in every other room. Where > is all this bandwidth meant to go? Isn’t this more being driven by supplying a reliable signal/coverage area especially as client device density goes up and even more especially in construction settings where propagation is challenging? -- Julian Y. Koh Acting Associate Director, Telecommunications and Network Services Northwestern University Information Technology (NUIT) 2001 Sheridan Road #G-166 Evanston, IL 60208 847-467-5780 NUIT Web Site: <http://www.it.northwestern.edu/> PGP Public Key:<http://bt.ittns.northwestern.edu/julian/pgppubkey.html> ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/. ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/. ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.
