[LINK] Work on Next Generation Wireless in Canberra

Richard Chirgwin rchirgwin at ozemail.com.au
Tue Nov 23 11:05:22 AEDT 2010

On 23/11/10 10:51 AM, Tom Koltai wrote:
>> -----Original Message-----
>> From: link-bounces at mailman.anu.edu.au
>> [mailto:link-bounces at mailman.anu.edu.au] On Behalf Of Richard Chirgwin
>> Sent: Tuesday, 23 November 2010 9:52 AM
>> To: link at mailman.anu.edu.au
>> Subject: Re: [LINK] Work on Next Generation Wireless in Canberra
>> On 23/11/10 9:03 AM, David Boxall wrote:
>>> On 21/11/2010 11:52 AM, Tom Worthington wrote:
>>>> ...
>>>> In my view, wireless will be the key technology for completing the
>>>> National Broadband Network (NBN). ...
>>> Should we ever consider our telecommunications infrastructure
>>> complete? At what point can we say that no improvement is possible?
>>>>         ABSTRACT:
>>>>         With the forecast exponential growth of mobile broadband ...
>>> Why conflate wireless with mobile?
>>> What is the potential of the best fixed wireless? How does
>> it compare
>>> with the best, currently available, mobile technologies?
>> The very quick answer, sticking to what's on the shelf now, there are
>> proprietary technologies good for up to 1 Gbps if you want to
>> pay for them.
>> If we're talking consumer level, you can choose between WiMAX
>> (eg Vivid
>> Wireless) or various proprietary technologies.
>> If you can run 1:1 - an unshared point-to-point link - then
>> you can get
>> good speeds at a cost. Otherwise, you will have the same provisioning
>> question as you have with mobile - how many users can one
>> base station
>> serve?
>> A fixed 1:1 solution will outperform a shared mobile
>> solution, but at a
>> cost penalty.
>> Cheers,
>> Richard C
> Which is why in a lack of spectrum world, CDMA based
> timeslicing/spectrum hopping remains an interesting variant to LTE.
> I firmly believe that the final WiFi Broadband technical solution will
> need to be a CDMA based solution unless all the spectrum is recalled and
> re-allocated.
Actually, if I exclude a couple of providers (Unwired / Vivid for eg), 
most of the wireless last mile in Australia is unlicensed anyhow - the 
little host of little providers scattered around various regions. As to 
some kind of "ubiquitous wireless instead of fibre" solution, that's 
loco; there isn't enough spectrum, even if reallocated.


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