Feeds

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

Running rings around copper broadband

Business security measures using SSL

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. ®

Protecting against web application threats using SSL

More from The Register

next story
Brit telcos warn Scots that voting Yes could lead to HEFTY bills
BT and Co: Independence vote likely to mean 'increased costs'
Phones 4u slips into administration after EE cuts ties with Brit mobe retailer
More than 5,500 jobs could be axed if rescue mission fails
New 'Cosmos' browser surfs the net by TXT alone
No data plan? No WiFi? No worries ... except sluggish download speed
Radio hams can encrypt, in emergencies, says Ofcom
Consultation promises new spectrum and hints at relaxed licence conditions
Blockbuster book lays out the first 20 years of the Smartphone Wars
Symbian's David Wood bares all. Not for the faint hearted
Bonking with Apple has POUNDED mobe operators' wallets
... into submission. Weve squeals, ditches payment plans
This flashlight app requires: Your contacts list, identity, access to your camera...
Who us, dodgy? Vast majority of mobile apps fail privacy test
Apple Watch will CONQUER smartwatch world – analysts
After Applelocalypse, other wristputers will get stuck in
prev story

Whitepapers

Providing a secure and efficient Helpdesk
A single remote control platform for user support is be key to providing an efficient helpdesk. Retain full control over the way in which screen and keystroke data is transmitted.
WIN a very cool portable ZX Spectrum
Win a one-off portable Spectrum built by legendary hardware hacker Ben Heck
Storage capacity and performance optimization at Mizuno USA
Mizuno USA turn to Tegile storage technology to solve both their SAN and backup issues.
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?
Security and trust: The backbone of doing business over the internet
Explores the current state of website security and the contributions Symantec is making to help organizations protect critical data and build trust with customers.