[LINK] NBN to cost 24 times South Korea's faster network, says research body

Marghanita da Cruz marghanita at ramin.com.au
Fri Feb 11 09:33:15 AEDT 2011

Paul Brooks wrote:
> The issue is that contention on a mobile wireless air segment is completely

I specifically made a distinction between the mobile and 
stationary/fixed. I would be surprised if carriers can't 
control access on both! This is the misinformation that I 
find irksome about the we have to have fibre camp!

> uncontrolled - the carrier has no control and no influence over the number of people
> and devices that any basestation might have to serve, as people move in and out of the
> coverage area, but however many there are, and however hard they all suck on the
> data-pipe, there is only a fixed amount of spectrum and data capacity to serve them
> all with. This unknowable demand can change up or down on timescales of less than an
> hour - so congestion/contention is a frequent problem.
> On the fibre, the operator knows and can control how many devices it is serving
> (maximum of 32 legs from the splitter) and the maximum demand from each one, courtesy
> of the provisioning system and the bandwidth plans signed up for in advance by the
> customers. The demand is knowable, and changes on timescales of weeks and months as
> people move house and upgrade/downgrade/churn their fixed broadband service - so its
> much easier to plan in advance for, and congestion/contention should not occur.
>> The transience issue also applies to wireless. The distinction between Stationary
>> (at time of use, but device can be relocated) and Mobile rather than Fixed (which is
>> what the NBN is implementing) and mobile would be more practical.
> The NBN is covering the fixed service for sure. Transient/itinerant/mobile use can be
> covered by one or more enterprising service providers dotting wireless basestations
> around on the end of NBN tails - NBN isn't supposed or intended to be providing all
> the answers for everyone, just enough of the answer to stimulate others to leverage it
> and extend it.
> P.

Marghanita da Cruz
Tel: 0414-869202

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