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Aussie Claims Copper Broadband now 200x Faster
SkiifGeek writes "Winner of Melbourne University's Chancellor's Prize for Excellence, Dr John Papandriopoulos could soon find himself the focus of a number of networking companies and government agencies interested in wringing more performance from existing network infrastructure. Dr John developed a set of algorithms (US and Aussie patents pending) that reduce the impact of cross talk on data streams sharing the same physical copper line, taking less than a year to achieve the breakthrough. It is claimed that the algorithms can produce up to 200x improvement over existing copper broadband performance (quoted as being between one and 25 mbit/sec), with up to 200 mbit/sec apparently being deliverable. If the mathematical theories are within even an order of magnitude of the actual gains achieved, Dr John's work is likely to have widespread implications for future bandwidth availability across the globe."
My dreams of building a top-notch deathmatch LAN using old rolls of 1970s speaker wire from my basement could finally come true.
Slashdot Burying Stories About Slashdot Media Owned
So is this like coating the series of tubes with an improved surface so that the trucks get better traction?
(Up to 200 mbit/sec) / (Up to 25 mbit/sec) = 8x improvement...
Search RapidShare and MegaUpload!
PhD student advertises thesis on slashdot! News at 11.
"Dr John's work is likely to have widespread implications for future bandwidth availability across the globe."
Given what I've seen in the past and knowing how greedy telecommunications companies are, I doubt the above statement.
Exactly. Without intending offense to Dr. Papandriopoulos, this is really not news, nor does it have widespread implications for future bandwidth availability across the globe. Global bandwidth is more about high speed backbones, which this technology does not even begin to approach. It is only useful in solving the last mile problem of getting things off the backbone to a terminal. And by the time this gets commercialized, I think we can count on at least three other technologies being faster still, with cellular style broadband probably at the top of the list.
Had a few beers with him. Here is his homepage.
It could on cost. Using fiber in many areas requires that you lay new lines. Even if it's not quite as fast as copper, or has a little more latency (light is faster than electrical signals), you could probably make quite a bit of money since there's a much smaller investment.
Anthropic principle: We see the universe the way it is because if it were different we would not be here to see it.
And we learned, in Electrical Engineering, that the theoretical maximum bandwidth for a phone line was 2400 bps.
Using basic bandwidth calcs for voice (500 to 4000hz?) and imposing a modulated signal inside that, the distortion created by the physical arrangement of the wires would cause the limit.
I'm glad that some people aren't scared off by theoretical physical limits.
(That was in about 1986, A Hayes 1200 baud modem was an amazing piece of equipment and cost about $700)
Geek Post Subject: Comcast Throttles Bandwidth, Breaks Contract
Geek Post Comments: I can't believe Comcast! They promised me an unlimited 200mbit connection and all I am getting is 60mbit! I want what I paid for, who cares how fast my connection was 3 years ago! I demand my 200mbit connection, and at $50 per month!11!
Geek Post Moderation: +5, Insightful
Not true... information theory shows that a fractional bit is a probability of transmitting the desired bit correctly. A true source of random noise generates no bits, but a highly noisy channel transmits fractional bits per noisy bit sent. Fractional bits are well-founded mathematically.
Beer is proof that God loves us, and wants us to be happy.
Actually, Aussies just discovered ADSL networking, now 200x as fast as their current POTS network :)
;)
I kid, please don't bite
I have discovered a truly marvelous proof of killer sig, which this margin is too narrow to contain.
I know this guy though having attended conferences with him. I know he is not a scam artist. I also think he is brainy enough to do this. He is not a fly by nighter but a serious communications theory researcher with a track record. As I've just emailed to my supervisor, "It's not every day a communications theorist makes the mainstream media". John Papandriopoulos is easy to find on google.
The slashdot summary and linked articles are rather short on details. A little googling located some details:
NOTE: I did a quick skim of it and had not seen any empirical evidence of the advance; seems to be entirely theoretical. I don't mean to lessen his accomplishments, but my experience is that reality usually has unforeseen factors. I certainly hope he IS on to something here!!
(*) I didn't know anyone used the <blink> tag any more. :/
Rubbish!
0 = one bit
( = half a bit
1 = one bit
' = half a bit
You need to use an appropriate font, obviously.
I don't know what you people would do without me to solve these little problems for you.
That sounds expensive. We should probably just increase the speed of light instead.
Not for distance. You're still subject to the 18Kfeet (max) limitation imposed by the resistance (gauge) of the wire.
Don't piss off The Angry Economist
But the wireless spectrum is very limited. For the first 100,000 people or so on the wireless network, it could probably remain pretty fast. But try running all the computers in New York City on a wireless network, and see what kind of speed you can achieve at each node. So as a starter point, to get the first few people in the country on a network, or to connect a small village, wireless networks could prove extremely useful. However, if you want to take all the network communication in a large city and try to accomplish that without wires, you'd probably fail very quickly. Don't even start to mention current cellular networks, because there's still a lot of wires involved.
Anthropic principle: We see the universe the way it is because if it were different we would not be here to see it.
You underestimate the cost of replacing the last mile technology... there are millions of miles of copper out there and it isn't going anywhere soon. BT's 21cn replacment for example is going to take until 2011 to update their network (if on schedule, and AFAIK it's behind already), cost many hundreds of millions and *still* relies on copper for the last mile (it merely makes ADSL2 deployment easier). And most countries' networks aren't even coming close to that level of investment.
If this means they'll be able to go to ADSL3 at 200Mb/s then I'm all for it.
A short one: Yes and No. It still stands, the numbers are still correct. That's the theoretical limit if you use the normal phone exchange(s), and the existing, limited, phone bandwidth (300-3400 Hz)
ADSL, though, uses the spectrum above, and needs extra ports on the last phone exchange to your house, since - contrary to standard modem - these signals don't pass through the plain old telephone system. They are kind of injected at the very end.
Comment removed based on user account deletion
Adams platform.
Also Australian. Who would have guessed it's an island full of criminals?
> I hate "UP TO"...the most meaningless phrase in American Marketing.
So, it would be safe to say you've had it "up to here" with the phrase...?
"Slow down, Cowboy! It has been 3 years, 7 months and 26 days since you last successfully posted a comment."
Reminds me of my own solution to the Gabriel's Horn problem.
That's the "infinite surface area, finite volume" problem, if you needed to jog your memory.
My teacher explained the paradox by saying that it would be like something that would take an infinite amount of paint to paint the inside of it, but it would be able to hold a finite amount of paint.
I quickly pointed out that this was only true if paint were not made out of molecules. At some point, you can no longer put any more paint on the surface, because the molecules are too big to place there.
Of course, if you were to ignore that fact, and only look at the mathematical side, I also pointed out that you could paint the surface of the horn with a single very thinly sliced proton.
If you can read this, I forgot to post anonymously.