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150 Mbit/s DSL.
surstrmming writes "German company Infineon have released their new QAM
VDSL Plus
chips, providing 150 Mbit/s data rates over ordinary copper wire." Note that that kinda throughput is at the 1000 feet mark... but the chip can still serve up 4mbps even at 13,000 feet.
I used to drool over the 'next-generation-is-just-around-the-corner' stories, but
;-)
lately I have been having second thoughts.
I live in the middle of Silicon Valley and they can't even serve me DSL better then
190Kbits/sec. No cable modem in my area eiter. It is so painfull, I almost posted this
anonymous
No really...when will last generations broadband stuff truly be available to the masses
here in the US? Who and how will they fix the last-mile problem if the governament isn't
stimulating this issue?
Same with the phone network. 3G you ask? HAHAHA, not in the mother-of-all-technology
countries, nosir.
Thats pretty awesome, however with some people > 5Km from their CO, they may not get a proper sync rate. I'm, thankfully, very close to my CO, and have a 3mbps line now. Downloading at 350kb/sec is awesome, but after a while the cool-factor wears off. It's handy when Red Hat and other distros of interest are released but otherwise it's an expensive (70 Canuckles a month)toy.
Maybe HE can provide faster nudity...
Step 1: Move within 2000 feet of DSL provider
Step 2: ???
Step 3: Profit!
---- "Excuse me. Where's the children's gun section?"
These speeds aren't that impressive when considering the normal density of telephone exchanges and typical copper cable runs. It seems that the DSL bandwidth over 2 copper wires has reached the point of not being able to significantly increase the capacity at anything approaching Moore's law. When will we have carriers that value the importance of running fibre to the home and developing high capacity switches to cater for this level of bandwidth? Here in Australia, there is serious consideration for the Natural Gas utilities to provide fibre-in-the-gas-pipe-infrastructure.
As the subject says, 99.9% of the the people out there are limited not by the capability of the line, but by the limits imposed by the service provider.
TODO: Something witty here...
Most people I know who have a choice between DSL and cable modem have gone with cable (myself included). This mostly comes down to the speed difference (although in my case it also had to do with a maddening disconnect problem that Qwest DSL could not seem to solve for me).
If DSL could truly start offering service that is MUCH faster than cable, they might be able to reverse the trend towards cable (67% for cable vs. 28% for DSL according to a recent Pew Internet & American Life Project study.)
VDSL Leaders Announce VDSLPlus: Data Rates Up to 150Mbps and Extended Reach Exceeding 4 KM Using Robust QAM Technology
2003-06-11
Joint news release of Infineon and Metalink
Munich, Germany and Yakum, Israel â" June 11, 2003 â" Addressing the market demand for ever greater reach for VDSL and ever greater bandwidth over a single pair, Infineon Technologies (FSE/NYSE: IFX) and Metalink (Nasdaq: MTLK), today announced they are each developing VDSLPlus, which introduces a fifth-band extension of standard VDSL technology. VDSLPlus will enable service providers to offer scalable DSL services ranging from short range applications at data rates up to 150 Megabits per second (Mbps), to long reach applications that allow for more than 4Mbps rates over distances of 4km (13,200 ft) using the same line-card and Customer Premise Equipment (CPE) designs.
VDSLPlus will use a new frequency âoebandâ above the current 12 MHz limit, as defined by international VDSL standards, to achieve the highest speeds ever reached in data transmission over standard twisted-pair copper wire. The benefits of the extended QAM VDSL technology include:
"Infineon and Metalink continuously work to extend the capabilities of QAM VDSL, each making great strides in advancing the technology. As Service Providers and Carriers have mass deployed and gotten familiar with QAM VDSL over the four years it has been in the market, their demands have grown for increased VDSL bandwidth and reach, while they want QAM to maintain its highly cost effective, scalable deployment model. Metalink and Infineon are committed to collaborating with other industry leaders in extending the open QAM VDSL specifications and definitions to continuously meet this demand while preserving strict compliance to international standards," said Tzvika Shukhman, Chairman and CEO of Metalink.
Metalink and Infineon continue to be committed to teaming with other QAM PHY and system companies to promote VDSLPlus standardization in the various standar-dization bodies and to extend the companiesâ(TM) already proven interoperability to the new technology. The two companies are the only suppliers to have demonstrated fully interoperable, commercially available VDSL products.
" The accelerated market demand for enhanced VDSL drives the cooperation between Metalink and Infineon, especially in Asia Pacific and Japan where QAM VDSL is a huge ongoing success. VDSLPlus is an extension to field-proven QAM-VDSL technology, incorporating enhanced integration levels, higher bandwidth capacity, and greater reach capabilities. With more than two million QAM VDSL lines in service generating revenue for Operators and more than a hundred system vendors who already offer QAM-based VDSL platforms, QAM is accepted as the de-facto line code for VDSL,â said Christian Wolff, Vice President of Infineon's Communications Business Group and General Manager of the Access Business Unit.
QAM VDSL chipsets and systems, supporting the ITU, ETSI, Chinese, and ANSI band allocation plans, provide very high speed data transmission rates over robust, noise-immune QAM links enabling simultaneous video, data, and voice services over single-pair copper wires. The inherent simplicity of the QAM line code is demon-strated in superior cost and power advantages over competing VDSL line codes, yet with QAMâ(TM)s sophisticated features and benefits. These advantages are f
I now have broadband from a small, independent company (that is slowly going under cause of SWB), but I get 4 Mbit down and 500 Kbit up for about half the price of SWB's 1.5 Mbit down w/ 16 Kbit up. I routinely have 350 - 450 KB/s downloads, and they have great service. They would most likely hop on a technology like this so they can keep ahead of the big companies, but they are going under.
Without the little companies, there will never be incentive for the big companies to invest in techonology like this or any other technologies that would improve our online experience.
"BEHOLD, CORN!!" - Dr. Weird, ATHF
Why use this old technology when they can invest in newer technology like fiber to the house and/or Internet2 connectivity?
This is a test. This is a test of the emergency sig system. This has been only a test.
Who cares if it can do 150 Mbit?
Nobody is going to run that kind of pipe out to the CO.
-Nick
My name is Obi-Wan Kenobi. You killed my master. Prepare to die.
It's not a technical problem.
DMCA, Hollings, Palladium. What might have sounded like paranoia is now common sense.
If I may karma whore for a bit, what is this "QAM" busniess?
QAM stands for "Quadrature Amplitude Modulation" which is a fancy name for a simple concept. Also called "I/Q modulation" it's a way to transmit two data streams over the same carrier signal.
The streams are combined in such a way that they can be separated at the other end by using the two most elegant mathematical theorems of man, sine and cosine. What happens, in basic terms, the streams are at "right angles" to each other in the signal.
Being able to have two carriers worth of data can provide a geometric increase in capacity; this was also the technology that was going to be behind "Stereo AM" radio, but that never made it off the ground (Stero AM would have been cool since it would only have to use one frequency for both left and right channels unlike our current analogue sterophonic FM that uses 2 channels).
Hilary Rosen's speech was about her love of money and her desire to roll around naked in a pile of money.
I'm currently about 5KM or so from my CO. No ADSL available, only Comcast cable modem with their usual bandwidth throttling.
SBC did offer to sell me SDSL: twice the price of their standard ADSL ($80/mo) at 128K (bleah).
How about some devices to make it easy to relay the DSL signals to the edges of the CO's area?
If a chip can give you those great speeds at 4KM, can we at least get reasonable service beyond that?
Design for Use, not Construction!
The usual reason it slows down is because their local data .
.
.
.
.
line to your local CO is over sold
They hook up more ppl than they should to the line to
maximize their profits, it is the same thing AOL did
back in the mid 90's just at a DSL scale vs. dial up
The whole shared bandwidth argument touted by DSL providers
against the cable modem ppl , is just a viable against
the DSL providers
If you abuse the network and over sell it, it is going to
slow down for ppl
You might try another DSL modem, NIC, and PC on the connection,
but if they are the same slower speed then your problem
most likely lies with them over selling the lines
Peace,
Ex-MislTech
google "32 trillion offshore needs IRS attention"
If extra bandwidth is only 10 cents per megabyte, a single user on a 150mbit line could choose to purchase up to $4,860,000.00 per month (plus $324,432.46 federal excise tax and $127,368.32 universal service fee) of additional data services! If only a few percent of all users decide to puchase this much data, there would be a huge potential for revenue growth.
4 millibits per second!!!
Outstanding!
At that rate, this 122 Byte comment would take 67 hours 45 minutes to transfer!
Marques Johansson
Well, it's great that it can pull down 150Mb/s ... but you've gotta have an empty OC3 to feed it. And if you've got an OC3, might as well kick out the extra cash to run in the extra 300 meters.
The 4km @ 4Mb/s is pretty nice, though.
It's all going to be swept away by Digital Spread Spectrum.
The Net will be in the air, encrypted, ubiquitous, undetectable, unstoppable and free.
It's Christmas everyday with BitTorrent.
Yikes. I'd better stop reading this discussion; That was ten percent less than a lethal dose of acronyms.
If your own commercialism stops innovation from reaching consumers, vote democratic. Don't oppose taxes. Write letters to your local representatives.
Whining gets you nowhere, and it's just annoying for those of us who actually have a shot at using this technology.
Well, Herr Speedy-Hosen, for 1000 feet, I could just hire Michael Johnson to run across campus in - erm - 30 seconds with - let's see - 700 MB per cd... 150 mbit per sec... um..... (click click click) 1,400 cds on his back and get the same throughput! SO TH... What? Ah. OK - maybe this IS a breakthrough after all. Never mind.
"Win treats sysadmins better than users. Mac treats users better than sysadmins. Linux treats everyone like sysadmins."
..a Federal Express aircraft full of DVD's. Although ping latency is horrible :(
You're sadly misinformed. True rate ADSL as it was originally planned was capable of 7 MBaud downstream. This was designed specifically to hold a television channel with the compression capabilities of the mid 90s. The lite version that was deployed has less power, supposedly to eliminate the need for trips to the premises to install filters, is only capable of 1.5 MBaud. Supposedly, they didn't find out until after they started deploying that the real world would still require the filters. So, we got stuck with a crippled version for no reason other than perhaps to reduce the electric bill of the switch by about 60%. Furthermore, only the people closest to a switch get that. Though in a major metropolitan area, my DSL connection is limited to about 768KB. The only reason I keep it versus cable is that my provider is very good about actually giving me the whole 768KB unlike some which would bottleneck you to modem speeds at their routers during peak traffic loads.
So, a very few might be able to get 1MBaud. I can't. I've tried to view 300KBaud streams and the quality/resolution is so little as to be worthless.
Also, I think 1MB of mpeg4 falls a bit short of what I'd expect to see on an IP based video stream. Chances are I'm going to be watching that on my computer display at times and it has 2048x1536 resolution. I at least expect HDTV signal resolution with good quality. Certainly anything being thought of now and thus not fully deployed until years down the road has to at a minimum target HDTV.
So, I'd like to see a minimum of about 30MBaud guaranteed bandwidth at the worst case distance. But that is just when thinking of current day consumer side technology. There are a lot of hardware advances in the labs now (and some even out of the labs) that could make good use of far more bandwidth than that. There are even production 3D displays available today.
So, my point is that someone looking at what to deploy today and looking at lifetimes in the range of 20-50 years before the deployment cost is paid off as many of these companies are doing, needs to be planning to provide a bandwidth that will be able to grow at a rate of at least 2X every 2 years if not 18 months. We are a long ways today from the 300baud modems of the early 80s and by the early 20s, we should plan to be just as far from 1.5MBaud. That would put us at about 4GB in the 2023 time frame and over 100 PBaud in the 2043 time frame (those that are saying now that there is no way you'd ever use that must not have lived through the 64K, 640K and other barriers of the past that were more than we'd ever need). Thus there is definitely a need for high quality (not plastic) fiber to the curve to be laid by any projects wanting to compete in the long term.