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Aussie Telcos Consider 3G For Last Mile
Mattygfunk writes "Whirlpool reports Aussie telco R&D labs are scrambling to transform 3G mobile networks into last mile solutions rivaling the best wired broadband networks, as telcos come to grips with lack of consumer interest in 3G mobile services and a likelihood of no payback on their multi-billion dollar investments in the spectrum."
If you look at the GSM coverage map of China you will see that it has a large coverage for country so large. From what I undestand the reason for this, which is along the lines of the last mile, is that China did not have any cabled phone network covering that area to start with. Since it was going to cost them as much to wire such a large area and that mobile phones were growing in popularity they decided to go the wireless approach.
The reason I bring the story up, is because once you are in a rural area it becomes increasingly more expensive to connect to homes. The problem is that you get less inhabitants per length of telephone cable, thus making it extremely more expensive short and long term. The long term cost is the inspection of such a coverage of phone lines. The wireless approach allows a much larger area to be covered, and it ends up being cheaper as there is there are less inspection points. It also provides the advantage that the phone company also gets money from visitors to the area and not just the inhabitants. Additionaly, for a farmer, this is great as it allows him/her to phone home when they are somewhere in the middle of their land. This sort of solution could be easily applied to other countries with the last 100 miles problem, not just the last mile.
The only question I ask myself, is whether there are any solutions for solar powered transmission towers?
Jumpstart the tartan drive.
The only 3G system I know about is the European UMTS system, whose air interface operates on WCDMA (the same technology as the American system, which I believe is imaginatively called WCDMA).
This system is particularly well known for being resistant to interference. The original CDMA (Code Division Multiple Access - the W stands for Wideband) system was originally developed by the American military to provide resistance to jamming.
The key characteristic of WCDMA is that each handset signal is spread across a wide chunk of the spectrum (around 1.9 GHz in UMTS), by applying a code which is chosen to render the signal orthogonal to those of the other handsets. Applying the code at the other end to retrieve the original narrow-band signal has the beneficial side-effect of spreading any narrow-band interference across the original broad area of the spectrum, thus reducing its intensity. To effectively jam the system would involve swamping the entire UMTS spectrum, which would take a massive amount of power.
As for red lights causing interference in the ~2GHz spectrum - well, that's just plain silly.
Amusing troll, though.
Since 3G seems to be offering higher speeds, will the telco(s) introduce the service at low prices, only to win customers, garner major share of the market, only to raise prices afterwards (price increase follows bandwidth increase; "gotta pay recoup the cost of 3G license")? How are they coping with potential interference issues? What *is* the range of 3G anyway?
Have EVDO, will travel.
It's obvious that doing the last mile wireless is going to be cheaper than via copper. What baffles me though, is why making calls on my mobile is so much more expensive than a landline when the implementation/maintenance of wireless networks is so much cheaper than copper or fibre. It costs far less to stick a mast up than to start digging the road up.
Like tinyurl, but one letter less! http://qurl.co.uk/