It would require 802.11n or 802.16d in 15 MHz or larger channels to be useful.
----- Mike Hammett Intelligent Computing Solutions http://www.ics-il.com -------------------------------------------------- From: "Paolo Di Francesco" <[email protected]> Sent: Monday, November 16, 2009 1:39 PM To: "WISPA General List" <[email protected]> Subject: Re: [WISPA] IPTV -- Anyone doing it? > > >> We successfuly transmitted all of our programming over MikroTik wireless >> links without any problems. Including HD. > > > I have one doubt. Let's say that one SD/HD channel takes 1Mbps (just to > make math simple) and let's say that the number of total available > channel is 50. (the total number or channel is not a real problem to me, > but let's say the number is very high, 50 or 100) > Multicast can help a lot (if it's broadcast not video on demand) but my > doubt is about the number of simultaneous IPTV channels per sector > antenna (i.e. per radio channel). If you have 20 customers on the same > sector, each one of them watching a different TV channel you need 20Mbps > per sector + the normal internet traffic. Let's say 30Mbps per sector. > Or you can think to use a second sector IF the area is not so crowded. > So the more successful is the service, the more problem you have on the > radio channel (access network). > > So my concern is not on the backbone, it is on the access network. > Another point is: what happens when you experience interference in the > area? Web surfing can be acceptable with some interference, but IPTV is > a pain. Personally I would feel safer in licensed frequencies, but this > is my feeling, comments are welcome also about this. > > Other doubt: one user means maximum one channel per user? Or the same > user can watch multiple IPTV channels at the same time? (e.g. I have 2 > tv, so I put two IPTV boxes kids watch Disney, I watch football) > > Any wireless operator that is massively using IPTV wants to comment? > > Thank you > > > -- > > > Ing. Paolo Di Francesco > > Teleinform S.p.A. > Sede Legale: Via Francesco Paolo Di Blasi 1, 90144 Palermo > Unita' Operativa: Via Regione Siciliana 49, 90046 Monreale (Palermo) > Tel: +39-091-6408576, +39-091-6404501 > Fax: +39-091-6406200 > > http://www.wikitel.it > http://www.teleinform.com > > > > > > -------------------------------------------------------------------------------- > WISPA Wants You! Join today! > http://signup.wispa.org/ > -------------------------------------------------------------------------------- > > WISPA Wireless List: [email protected] > > 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: [email protected] Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
