Wimax & 3G 2006-06-26Posted by clype in Gizmo.
Invariably new technologies arrive as the answer to all our dreams, and then quickly turn into a nightmare of compatibility issues and specification disappointments.
When wi-fi arrived it was no different; it promised so much and then we was discovered it was allergic to walls, windows, doors and people.
This did not stop things though. Wi-fi may not be entirely fixed yet, but there is little doubt it is incredibly popular. Mr.Doug Loewe from ‘iPass’ says:
‘The most surprising aspect is that, for example, we had about 5 000 wireless locations available throughout the world just a couple of years ago. Now we have over 50 000.
‘The reason for that is that there are about 100 000 of them worldwide. Those hotspots have been proliferating, not only because there is not only corporate demand, but also consumer demand.
‘That is causing an explosion in the number of wi-fi hotspots available.’
That wi-fi world is full of letters and numbers, a bit like the real world but a lot more complicated. We are at the stage where we have to get it right, we have to cater for all the demands for the digital world. ‘802.11’ tells you it is wi-fi and the letter at the end tells you what it does. For example, ‘802.11a’, ‘802.11b’, ‘802.11g’ and ‘802.11n’. Belkin’s Mr.Rob Falconer says:
‘There has been an evolution of learning when “802.11b” came out it was “oooh, it works, look: no wires”.
‘What’s happened is the digital world had caught up and demands 10, 11, 12 megabits/second through-put, and “b” and “g” and all its variants can’t deliver that.
‘What we will see in probably the year is the “N standard” finally ratified and curing the problems we see today.’
When wi-fi started, its range, speed and usability were all pitiful.
In 2004-06, the IEEE started working on the ‘N standard’ and two years on they still have not agreed anything.
According to their website, it will not be finished by 2007-07 by the earliest. Mr.Falconer says:
‘It’s committee syndrome. We are at the stage where we have to get it right.
‘We have to cater for all the demands for the digital world, and it has got to ensure that every vendor puts a product on the market so that if a consumer buys brand A and brand B those two are going to talk.’
A new idea ‘on the block’ is ‘Mesh networking’, where we cover towns and cities with lots of connected wi-fi like transmitters and bolt them to, for example, the tops of street lamps.
But there is also another new technology, and its going to make us all feel really good: called ‘Wimax’, it comes with the designation ‘802.16’.
It has a very large range and there are different versions of it. Editor of Newswireless.net, Mr.Guy Kewney says:
‘There are three ‘flavours’ of “Wimax“: there is the Korean one which is installed and going “like mad”, which they call “WiBro“.
‘There is “802.16D” which is meant to be “A to B” cable replacement and has been used by some of the train operating companies to get wi-fi into the train and phone into the train.
‘And there is “802.16E” which is designed to be mobile but hasn’t been specified yet.
‘The whole trend of wireless for the last 20 years has been lower-and-lower power, shorter-and-shorter range, more-and-more cells. The whole attempt of “Wimax” is to try and leapfrog long-distances, it’s trying to reverse the trends.’
So we have a wildly popular technology wi-fi that is only half delivering at the moment. An unproven technology, ‘Wimax‘, which has not been deployed yet. And we have not gone near ‘3G‘, which is a different kind of wireless.
All this may sound confusing, but Mr.Loewe from ‘iPass’ loves all four. He says:
‘I think you will see a combination of all three, wi-fi: ‘Wimax‘ — and ‘3G‘, as a mechanism for providing an on-ramp to the Internet.
‘I don’t think there will be one that will win over another because they are very compatible.’
- ‘Changing the face of wireless‘, Spencer Kelly, BBC Click Presenter, 2006/06/02 15:51:16 GMT