Archive for the 'Wireless' Category

LTE “world premiere” by TeliaSonera

Well, it seems 12.December.2009 was the day, the TeliaSonera guys did it first than anybody else: the first LTE (Long Term Evolution) commercial service is up and running (press release here) in the cities of Stockholm (Sweden) and Oslo (Norway).

They name it like a 4G service, but that’s not quite true…  the “real” 4G is the one defined by IMT-Advanced requirements (info here and here).

Anyway, this is a great achievement!  especially when some of us (rest of the world?) are still struggling to get a decent, reliable  and stable 3G network…

damm fast Wireless Link!

As Arthur C. Clarke once said, “Any sufficiently advanced technology is indistinguishable from magic” …and well, this seems quite true when you think of a Wireless Link with a data transfer rate of 6Gbps!!! yes, that’s right, six gigabits per second!

And according to the project researchers: “this breakthrough is just a first stage towards direct connections of up to 12 gigabits per second”. The credits go for CSIRO, the Commonwealth Scientific and Industrial Research Organisation, which is Australia’s national science agency.

This is really a big leap for Wireless technology, but it still is no match for data rates achieved over fixed networks (ok, I shouldn’t been comparing Wireless vs Fixed Networks…), where using DWDM technology we can currently support 80 data channels over a single fiber-optic cable (at a max. of 40Gbps per optical channel), which means about 3,2Tbps! what about that?

…and if I said to you that there were some successful tests with a data rate of 107Gbps over a single optical channel?


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