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Its not easy being green--Dr. Papandriopoulos has come up with technology which promises to revolutionize the internet.  (Source: The Sydney Morning Herald)
Australian researcher develops tech to raise internet speed x100, which should hit the market in 2 to 3 years.

It’s not easy being a young super-genius who just developed an algorithm to reduce interference in ADSL lines, potentially raising broadband connection speeds by a hundredfold. It’s not so easy, being internationally acclaimed and having fame and fortune knocking on your door.

Okay, so maybe life is going pretty good for 29-year-old University of Melbourne research fellow Dr. John Papandriopoulos -- but it’s not like he didn't earn it.

Dr. Papandriopoulos's PhD thesis is comprised with methods and techniques to use mathematic algorithms to reduce interference in DSL lines. This research is grabbing international attention due to the promise it holds; ADSL connections implementing the algorithm can go from approximately 1-10 Mbps to a blazing 100 Mbps or above.

Such an increase would revolutionize the internet industry worldwide. Dr. Papandriopoulos has two patents pending on his research, which will likely bring him some future wealth.

Further, he has been lured to move from his native Australia to Silicon Valley by Stanford University engineering professor John Cioffi, the "father of DSL" who helped develop the chips in the first DSL modems.

Professor Cioffi reviewed Dr Papandriopoulos's PhD thesis and was so impressed that he called up the young super-genius and offered him a job at his start-up company, ASSIA. Dr. Papandriopoulos accepted and is now on his way to fame and fortune abroad.

His Australian alma mater has not forgotten about Dr. Papandriopoulos either. University of Melbourne gave him the Chancellor's Prize for Excellence, a prestigious award. It’s no secret why the University of Melbourne is so happy; Dr. Papandriopoulos is assigning the University of Melbourne his patents, however; he will still likely make big royalties from the licensing agreement he reaches with the university. The university is eagerly looking into commercializing Dr. Papandriopoulos's technologies. They are in talks with multiple vendors of DSL equipment and modems.

Dr. Papandriopoulos's technology revolves around the interference and cross-talk that occurs between the cable wires of high-speed ADSL (Asymmetric DSL) wires. This significant cross talk and the resulting interference forces providers to settle for lower speeds.

"That is not an issue for voice calls these days but it becomes a problem when you're trying to wring more bandwidth out of these existing copper telephone wires [which power ADSL broadband connections],” explains Dr. Papandriopoulos. “This cross-talk in current day DSL networks effectively produces noise onto other lines, and this noise reduces the speed of your connection."

He says that his technology is better that competitive solutions as it is more practical and easier to implement. He sees it coming to the market with 2 to 3 years.

Meanwhile, Professor Cioffi and Silicon Valley can't wait to put the Aussie to work in only two weeks, developing more brilliant solutions. With a mind like his, perhaps the sad state of broadband in the U.S. and abroad can be overcome, and be replaced with ultra-fast and efficient high-speed connections.

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By wetwareinterface on 11/8/2007 9:14:05 PM , Rating: 2
dsl line speed COULD benefit from this IF crosstalk and or interference is the issue AND if it isn't crosstalk from another digital signaling source like dsl or t1.

there are several issues that would make a T1 or another dsl line's crosstalk negate any benefits of an algo to seperate noise from intended signal. one being emf phase cancellation. T1 lines use signalling in the 1 MHz and above range that, when it produces emf crosstalk, will negate the dsl signal to below operable levels. it's the basic electrical or sound wave principle that take any signal 180 degrees out of phase and reapply it to the original signal and you have no signal. T1 line radiation causes dsl to go out not from signal to noise ratio issues but the signal strength itself drops due to phase cancellation. before any signal can be noise filtered using an adsl modem/dslam's dsp chip the signal has to be there to interpret first. digital line emf issues that make most adsl installs fail in metro areas are from high concentrations of T1 lines in cable bundles. this tech won't help metro area dsl subscribers much at all.

next issue is long line subscribers. problem here is that to get long telephone lines out to rural areas there are coils placed on the phone lines. these increse impedance in order to reduce capacitance so the phone will still signal over long lines. as far as dsl is concerned 1 coil on the line = no adsl for you. so this isn't going to do anything for rural or long line subscriber access. another problem is timimg on long lines. the adsl signal needs a sync rate that is hampered beyond line feet of 25,000. after that length you are looking at maybe 512Kb if you are on a perfect copper pair of around 18 guage wire. and just so you know that is never gonna happen except for maybe 10 customers in the whole u.S.

this will only benefit those existing dsl subscribers who have non-digital interfernce that causes a high noise margin. basically if you can get adsl now at any speed rate and don't live in timbuktu it will be able to increase your speed. otherwise it won't help you much at all.

“So far we have not seen a single Android device that does not infringe on our patents." -- Microsoft General Counsel Brad Smith
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