Feeds

Aussie boffin turbo charges copper broadband

Who needs fibre?

Gartner critical capabilities for enterprise endpoint backup

An Aussie PhD student has developed an algorithm that he says can turbo charge an ordinary copper phone line to deliver downloads at 200Mbit/s.

John Papandriopoulos of the Universtity of Melbourne has patented maths he did for his thesis last year on "Dynamic Spectrum Management" (DSM). The algorithm aims to stomp crosstalk interference on DSL, a major reason why current "up to" 8Mbit/s ADSL usually splutters to between 3 and 4Mbit/s.

We'll let the good doctor do the explaining:

We formulate a (standard) model for how DSLs attain their data-rate, considering crosstalk interference effects. We exploit the fact that interference varies across the frequency spectrum, and that if we are clever about the way in which we allocate transmission power amongst the various frequency bands, we can manage the interference between (strongly) coupled lines. For example, one user that interferes strongly with others within a band may be "turned off" within that band to avoid damaging the other lines, consequently raising the overall network rate.

Papandriopoulos says the work could be applied to ADSL2+ broadband - the type BT is rolling out in its 21CN upgrade - to bring it closer to its theoretical maximum speed. Substantial kit changes would be needed to get the full benefit, however.

Melbourne University's technology spin out tentacle is aiming to flog the DSM work for commercialisation. Papandriopoulos' home page is here. ®

Secure remote control for conventional and virtual desktops

More from The Register

next story
The Return of BSOD: Does ANYONE trust Microsoft patches?
Sysadmins, you're either fighting fires or seen as incompetents now
Microsoft: Azure isn't ready for biz-critical apps … yet
Microsoft will move its own IT to the cloud to avoid $200m server bill
Oracle reveals 32-core, 10 BEEELLION-transistor SPARC M7
New chip scales to 1024 cores, 8192 threads 64 TB RAM, at speeds over 3.6GHz
US regulators OK sale of IBM's x86 server biz to Lenovo
Now all that remains is for gov't offices to ban the boxes
Object storage bods Exablox: RAID is dead, baby. RAID is dead
Bring your own disks to its object appliances
Nimble's latest mutants GORGE themselves on unlucky forerunners
Crossing Sandy Bridges without stopping for breath
prev story

Whitepapers

Implementing global e-invoicing with guaranteed legal certainty
Explaining the role local tax compliance plays in successful supply chain management and e-business and how leading global brands are addressing this.
Top 10 endpoint backup mistakes
Avoid the ten endpoint backup mistakes to ensure that your critical corporate data is protected and end user productivity is improved.
Top 8 considerations to enable and simplify mobility
In this whitepaper learn how to successfully add mobile capabilities simply and cost effectively.
Rethinking backup and recovery in the modern data center
Combining intelligence, operational analytics, and automation to enable efficient, data-driven IT organizations using the HP ABR approach.
Reg Reader Research: SaaS based Email and Office Productivity Tools
Read this Reg reader report which provides advice and guidance for SMBs towards the use of SaaS based email and Office productivity tools.