[AusNOG] Alternative to NBN?

[Mark Newton]

On 20/05/2011, at 1:36 PM, David Connors wrote:

Reality is the opposite of what you propose.
Higher speed wireless = more bandwidth available for a given slot of time on the air. An increase in bandwidth means that a given user will use a proportionately smaller amount of RF air time to consume the same amount of data = more free air time and more users and a higher peak throughput for the network.

More bandwidth means more spectrum required to achieve the desired
bitrate, which means we carve our spectrum up into larger chunks, which
means we need the same amount of it for the same number of Mbps
regardless of how much "RF air time" (yeesh) we use.

Shannon Hartley Theorem is your friend.

  - mark


--
Mark Newton                               Email:  newton at internode.com.au<mailto:newton at internode.com.au> (W)
Network Engineer                          Email:  newton at atdot.dotat.org<mailto:newton at atdot.dotat.org>  (H)
Internode Pty Ltd                         Desk:   +61-8-82282999
"Network Man" - Anagram of "Mark Newton"  Mobile: +61-416-202-223





-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.ausnog.net/pipermail/ausnog/attachments/20110520/6b8ecfde/attachment.html>