Feeds

EC researchers demo multi-gigabit fibre-to-the-home

Running rings around copper broadband

Intelligent flash storage arrays

European Commission-funded researchers have declared a high speed broadband research project a success, stating that the “Sardana” project (Scalable Advanced Ring-based Passive Dense Network Architecture) has demonstrated the feasibility and robustness of 10 Gbps fibre-to-the-home networks.

The project, which was supported by €2.6 million from the Commission, also demonstrated that the higher speeds it describes are achievable using off-the-shelf components.

The main architectural change proposed by the Sardana researchers is to fan-out end user connections closer to the home, and using wavelength division multiplexing (WDM) to increase the capacity delivered to the fan-out nodes. A PON environment such as is being used by Australia’s National Broadband Network serves as many as 32 households from a node, which limits the capacity that can be delivered to the end user (although the NBN is designed to start at 100 Mbps, and has been demonstrated at an end-user speed of 1 Gbps).

Serving nodes from a fibre ring also makes the network more robust, according to the Sardana researchers, since connectivity should be able to survive a break in the ring.

More encouragingly, the Sardana pilot demonstrated symmetrical high-capacity connections, rather than the lingering asymmetry that inhibits most current architectures.

“Using WDM on the ring means we can multiply bandwidth by 40 wavelengths so individual users can enjoy 1 Gbps: not just in one direction, but in both directions, both upstream and downstream,” says Professor Josep Prat of the Universitat Politècnica de Catalunya, coordinator of the project.

“This could open the door to entirely new applications that are simply not possible today, such as high definition video conferencing.”

The trial network included lab tests by Tellabs, a field trial in Brittany, and a demonstration at the FTTH Council in Milan. The tests showed that the Sardana architecture could serve as many as 4,000 users with symmetrical 300 Mbps connections up to 20 Km from the main ring, or up to 250 users 100 km from the main ring, with 10 Gbps / 25 Gbps asymmetrical services. ®

Secure remote control for conventional and virtual desktops

More from The Register

next story
Same old iPad? NO. The new 'soft SIMs' are BIG NEWS
AppleSIM 'ware to allow quick switch of carriers
Brits: Google, can you scrape 60k pages from web, pleeease
Hey, c'mon Choc Factory, it's our 'right to be forgotten'
Of COURSE Stephen Elop's to blame for Nokia woes, says author
'Google did have some unique propositions for Nokia'
FCC, Google cast eye over millimetre wireless
The smaller the wave, the bigger 5G's chances of success
It's even GRIMMER up North after MEGA SKY BROADBAND OUTAGE
By 'eck! Eccles cake production thrown into jeopardy
Mobile coverage on trains really is pants
You thought it was just *insert your provider here*, but now we have numbers
Don't mess with Texas ('cos it's getting Google Fiber and you're not)
A bit late, but company says 1Gbps Austin network almost ready to compete with AT&T
prev story

Whitepapers

Forging a new future with identity relationship management
Learn about ForgeRock's next generation IRM platform and how it is designed to empower CEOS's and enterprises to engage with consumers.
Why cloud backup?
Combining the latest advancements in disk-based backup with secure, integrated, cloud technologies offer organizations fast and assured recovery of their critical enterprise data.
Win a year’s supply of chocolate
There is no techie angle to this competition so we're not going to pretend there is, but everyone loves chocolate so who cares.
High Performance for All
While HPC is not new, it has traditionally been seen as a specialist area – is it now geared up to meet more mainstream requirements?
Intelligent flash storage arrays
Tegile Intelligent Storage Arrays with IntelliFlash helps IT boost storage utilization and effciency while delivering unmatched storage savings and performance.