One can only speculate on bandwidth, but a further source reveals that they are using "multicast wi-fi"
http://www.theverge.com/2013/2/20/4006836/barclays-center-app-replays-smartphone It's all powered by Cisco's new StadiumVision Mobile, which reps compared > to how cable is delivered to your TV: instead of everyone having to crowd > onto a single connection, the "multicast" connection splits the feed and > delivers the same thing individually to everyone. That means my stream is > the same whether I'm alone in the stadium or surrounded by 19,000 other > Nets fans. In practice, it works remarkably well — I didn't get a chance to > test it with 19,000 people, but even in a quickly-filling arena my stream > never slowed or broke. I switched between a game feed and a stationary > camera above the rim, and jumping back into a replay worked seamlessly. The stream is delayed about two seconds from the game itself, which for > replays is actually perfect — by the time you look down the play's > happening again. It does make it impossible to listen to the TV feed's > announcers, though, since they're always slightly behind the game as it > unfolds. On Wed, Aug 28, 2013 at 1:54 AM, Warren Bailey < wbai...@satelliteintelligencegroup.com> wrote: > Any idea of the data rate required per stream? > > > Sent from my Mobile Device. > > > > -------- Original message -------- > From: Joly MacFie <j...@punkcast.com> > Date: 08/27/2013 8:14 PM (GMT-08:00) > To: North American Network Operators Group <nanog@nanog.org> > Subject: Fwd: [newtech-1] Barclays wifi > > > From the NY tech meetup list. Any one here care to comment, off or on > list? > > j > > ---------- Forwarded message ---------- > From: Dean Collins > > Anyone know more about Barclay Wifi - > > http://www.fastcompany.com/3007452/innovation-agents/brooklyn-nets-barclays-center-slam-cam-puts-every-dunk-your-face > **** > > ** ** > > > Can they really stream hidef video to 19,000 devices simultaneously in hd > via wifi? > > Surely they are hitting some spatial limits…..? (eg I know when my old > company sold a DECT platform to the ASX we ran into bandwidth limits for > the number of base stations in a single room)**** > > ** ** > > ** ** > > ** ** > > Cheers,**** > > Dean**** > > ** ** > > > > > > > > -- > --------------------------------------------------------------- > Joly MacFie 218 565 9365 Skype:punkcast > WWWhatsup NYC - http://wwwhatsup.com > http://pinstand.com - http://punkcast.com > VP (Admin) - ISOC-NY - http://isoc-ny.org > -------------------------------------------------------------- > - > -- --------------------------------------------------------------- Joly MacFie 218 565 9365 Skype:punkcast WWWhatsup NYC - http://wwwhatsup.com http://pinstand.com - http://punkcast.com VP (Admin) - ISOC-NY - http://isoc-ny.org -------------------------------------------------------------- -
