Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

GANDALF conjures up faster, seamless Internet technique

09.11.2005


As the white wizard of Middle Earth in Lord of the Rings, Gandalf had some astounding abilities. As his modern namesake, the GANDALF project is set to cast a spell over the Internet world by offering unprecedented data transfer rates seamlessly over both fixed-line and wireless.



GANDALF has developed a groundbreaking technique to increase data rates by a thousand-fold compared to existing DSL and a hundred-fold compared to WiFi. The technology also allows data to flow seamlessly over both wireless and fixed-line communications, making the project the only initiative in the world to progress so far in both areas.

“Why not use the same technology for both fixed-line and wireless? That was the fundamental question that drove the project,” explains GANDALF coordinator Javier Martí in Spain. “We also saw the need to address the additional challenge of obtaining high rates of data transfer – exceeding 1 gigabit per second – over both cable and radio.”


“The major advantage for operators is that the cost of implementing GANDALF is minimal,” Martí says. “We estimate that it would not cost more than say 50,000 or 60,000 euros to implement it across an entire network, which is peanuts for operators.”

Most significantly perhaps, the system would give operators access to more clients without having to undergo costly public works projects to lay new fibre optic cable. Existing cable could be used to relay data to the closest access node to clients’ homes before being converted into a wireless signal.

In areas where both fixed-line and wireless accessibility exists, the GANDALF system offers additional advantages. “The duality of the communications channels increases reliability,” the coordinator notes. “For businesses or public administrations this is particularly important. Banks and other companies carry out a process called disk mirroring, for example, where they copy the databases from all their branches. Lost connectivity during mirroring can cause major problems but with dual connectivity the reliability is greatly increased.”

With the GANDALF technique, data transmissions switch seamlessly between fixed-line and wireless. “It is completely transparent to users,” Martí notes.

Similarly, the system can also be used to connect two fixed-line local area networks by radio without the need for new fixed infrastructure, something that the project partners are currently testing at the campus of the Technical University of Valencia. The same site will also be used for other field trials before the project ends in December.

In-lab tests have so far achieved a data transfer rate over both fixed-line and wireless of 1.25 Gb/s and the project partners are currently studying other capabilities of the system.

“We’re planning to test the capabilities of creating wireless access at double radio bands using both the base-band and intermediate frequency. So far we have managed WiFi at 5 GHz and WiMax at 40 GHz. That makes sense in hotspots which could become very crowded very quickly, say in a football stadium during a soccer match. The technique would allow additional bandwidth to be added immediately as and where needed,” Martí explains.

One of the partners, Fibernet is also looking to use the system in disaster situations where cable communications are one of the first things to be destroyed.

“With our system in place they could send out mobile units that would relay the signal of the last functioning node to maintain communications for emergency services,” Martí says.

Another partner, Spanish cable operator ONO is also due to start rolling out the technology across Spain to boost its coverage and offer clients increased bandwidth.

“The technology is here and it works, the only thing remaining is standardisation, depending on how well that goes I imagine a product will be on the market within a year from now,” Martí says. “So in the coming years you can expect, with confidence, that many companies will start using this technology and many people will be receiving data over it in their homes, probably in Spain through ONO at first and then across the rest of the world.”

Tara Morris | alfa
Further information:
http://istresults.cordis.lu/

More articles from Information Technology:

nachricht First machine learning method capable of accurate extrapolation
13.07.2018 | Institute of Science and Technology Austria

nachricht A step closer to single-atom data storage
13.07.2018 | Ecole Polytechnique Fédérale de Lausanne

All articles from Information Technology >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: First evidence on the source of extragalactic particles

For the first time ever, scientists have determined the cosmic origin of highest-energy neutrinos. A research group led by IceCube scientist Elisa Resconi, spokesperson of the Collaborative Research Center SFB1258 at the Technical University of Munich (TUM), provides an important piece of evidence that the particles detected by the IceCube neutrino telescope at the South Pole originate from a galaxy four billion light-years away from Earth.

To rule out other origins with certainty, the team led by neutrino physicist Elisa Resconi from the Technical University of Munich and multi-wavelength...

Im Focus: Magnetic vortices: Two independent magnetic skyrmion phases discovered in a single material

For the first time a team of researchers have discovered two different phases of magnetic skyrmions in a single material. Physicists of the Technical Universities of Munich and Dresden and the University of Cologne can now better study and understand the properties of these magnetic structures, which are important for both basic research and applications.

Whirlpools are an everyday experience in a bath tub: When the water is drained a circular vortex is formed. Typically, such whirls are rather stable. Similar...

Im Focus: Breaking the bond: To take part or not?

Physicists working with Roland Wester at the University of Innsbruck have investigated if and how chemical reactions can be influenced by targeted vibrational excitation of the reactants. They were able to demonstrate that excitation with a laser beam does not affect the efficiency of a chemical exchange reaction and that the excited molecular group acts only as a spectator in the reaction.

A frequently used reaction in organic chemistry is nucleophilic substitution. It plays, for example, an important role in in the synthesis of new chemical...

Im Focus: New 2D Spectroscopy Methods

Optical spectroscopy allows investigating the energy structure and dynamic properties of complex quantum systems. Researchers from the University of Würzburg present two new approaches of coherent two-dimensional spectroscopy.

"Put an excitation into the system and observe how it evolves." According to physicist Professor Tobias Brixner, this is the credo of optical spectroscopy....

Im Focus: Chemical reactions in the light of ultrashort X-ray pulses from free-electron lasers

Ultra-short, high-intensity X-ray flashes open the door to the foundations of chemical reactions. Free-electron lasers generate these kinds of pulses, but there is a catch: the pulses vary in duration and energy. An international research team has now presented a solution: Using a ring of 16 detectors and a circularly polarized laser beam, they can determine both factors with attosecond accuracy.

Free-electron lasers (FELs) generate extremely short and intense X-ray flashes. Researchers can use these flashes to resolve structures with diameters on the...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

Leading experts in Diabetes, Metabolism and Biomedical Engineering discuss Precision Medicine

13.07.2018 | Event News

Conference on Laser Polishing – LaP: Fine Tuning for Surfaces

12.07.2018 | Event News

11th European Wood-based Panel Symposium 2018: Meeting point for the wood-based materials industry

03.07.2018 | Event News

 
Latest News

Leading experts in Diabetes, Metabolism and Biomedical Engineering discuss Precision Medicine

13.07.2018 | Event News

Research finds new molecular structures in boron-based nanoclusters

13.07.2018 | Materials Sciences

Algae Have Land Genes

13.07.2018 | Life Sciences

VideoLinks
Science & Research
Overview of more VideoLinks >>>