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New Mobile Network Technology at 2.5 GB/Second?
craig.hathaway writes to tell us that Japan's NTT DoCoMo claims to have a prototype wireless network capable of speeds up to 2.5 GB per second. From the article: "MIMO (multiple input, multiple output) uses multiple antennas to send and receive data, as well as specific coding that scrambles and unscrambles the signals produced by those antennas (see "Faster, Farther Wi-Fi"). A base station that uses MIMO technology has multiple antennas that simultaneously receive and send data to and from wireless devices. Unlike base stations with a single antenna, those with MIMO use the multiple antennas to create a number of intertwining channels through which data moves. The jumbled signals are untangled by a 'signal processing' that sorts through the bits."
I see this as a bigger scale form of a bit torrent, wouldent you receive several of the same package for different channels?
I could see this making mobile computing something more then it is, I know in the high end range of phones there are small computers basically in the users pocket, but this might allow it to become more of a standard and the phones we see as high priced will one day become the one we get free at sign up. Good luck to them I say
if you are what you eat , then I could be you by tomorrow.
so in other words a beowulf cluster of antennas (and I am assuming here separate transmitters)...doesnt seem groundbreaking to me...can someone enlighten me as to whats so special??
We played dungeons and dragons for 3 hours.....then i was slain by an elf
802.11(pre)N and Super Duper Ultra G routers have had MIMO for some time now. I guess this is new because it was rolled out on a larger scale?
Moderation Totals: Flamebait=2, Troll=1, Redundant=1, Insightful=6, Overrated=1, Underrated=1, Total=12. (not mine)
...but the review sounds like written by a complete clueless moron.
"The new computer has more gigabytes than the old computer and thanks to these all additional megabytes it's faster. The bits get computered in the additional gigabytes and each gigabyte can work separately so more bits can be computered at the same time resulting in faster computering by the computer."
Anagram("United States of America") == "Dine out, taste a Mac, fries"
Seriously. I've been using several MIMO devices for months now trying to find the right one. And then they post an article where the larger of the only two paragraphs is dedicated to explaining MIMO as if it's brand new.
"fast enough to download a DVD movie in between 7.5 and 10 seconds -- to a mobile device traveling at 20 kilometers per hour."
Hopefully, at some point they will develop a technology that will let you download movies without running 50 metres.
If we can put a man on the moon, why can't we shoot people for Apollo-related non-sequiturs?
Excuse my ignorance, but isn't this simply a case of converting what used to be a serial protocol into a parallel version?
Are we going to see a serial version come back in 5 years, which will be much faster due to the lack of syncronization overhead required?
-- Is "Sig" copyrighted by www.sig.com?
So... When are we getting those wireless mesh networks?
Join the anonymous, help develop the network: http://www.i2p2.de
2.5 GB/s is 20 gigabits per second -- in other words, half of an OC-768, which is the largest fiber backbone trunk in use today.
I don't buy it.
B = byte
b = bit
it's 2.5Gb/s, not 2.5GB/s
The slashdot headline and summary both say GB, while the article clearly states gigabits. It's annoying enough when adverts, stores, etc mix up g/G, m/M, b/B, etc, but it's verging on unforgivable when slashdot mixes up bits and Bytes...
It's official. Most of you are morons.
Eh, I've seen this reported in the IEEE Spectrum.
Nothing interesting here -- they say that currently they use fridge-sized receiver; the technology is
not quite there yet.
All these technologies risk to become useless because they need time to enter the market in a stable way and time to stabilise and cheapen the technology itself.
Think about the notorious 3G and 4G: a lot of buzzing, but too far from the GSM (aka 2G) and GPRS (aka 2,5G) to be considered a real and useful techology advance,
They should be bale to produce a mobile device able to operate and roam over three or four different network technologies (GSM/GPRS, UMTS, WiFi and 4G) with cost as low as a GSM phone. And it should be cheap enough to be adopted by more and more operators.
This sounds more like a dream than an actual business plan!
Maybe Computers will never be as intelligent as Humans.
For sure they won't ever become so stupid. [VR-1988]
I had a chance to play with this prototype a little while back. It was great to work with, but I noticed that the candy bars in my pocket kept melting and I haven't seen my dog in days...
7h3$3 4r3n'7 7h3 Ðr01Ð$ ¥0 4r3 £00|{1n9 f0r. M0v3 4£0n9. --OB1
And knowing DoCoMo they're going to still charge for that insane bitrate by the packet.
Holy crap, in just three seconds I rang up half a year's salary worth of charges!