Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Rising to the challenge of managing bandwidth

30.03.2006


Emerging mobile services are demanding an ever-increasing amount of bandwidth, but the radio spectrum for third generation (3G) and beyond systems is in short supply. Algorithms developed by European researchers are helping operators better manage their precious bandwidth resources.



The EVEREST project developed and tested advanced algorithms to provide mobile operators with enhanced Radio Resource Management (RRM) techniques aimed at reducing the risk of communications bottlenecks at a time when mobile devices are increasingly being used for much more than just voice calls. Email, video conferencing, live television and streaming music, together with a range of other emerging mobile services and applications all increase the pressure on limited network resources.

“Operators will therefore have to manage the scarce resources they have more efficiently if they are to maintain service quality and increase network capacity while meeting consumers’ demands for new services,” explains Fernando Casadevall, coordinator of this IST project. “The goal is for users to be provided with just the sufficient bandwidth necessary to ensure end-to-end Quality of Service (QoS).”


RRM techniques to control traffic, prioritise some services and clients over others, and switch clients between different wireless communications systems depending on their location and needs are an increasingly necessary feature of network management. Operators benefit by being able to handle more traffic and therefore more clients, while consumers receive better quality services.

EVEREST’s approach addressed heterogeneous networks in particular, where operators can allocate traffic to different generations of communications systems (from GSM and GPRS to UMTS and, eventually, beyond 3G systems) as well as Wireless Local Area Networks (WLANs) depending on the types of services being used.

“Clients who only want to make a phone call can be switched over to GSM, thereby keeping UMTS bandwidth free for people who are holding a video conference, while automatic handover to high bandwidth WLANs in a building cuts pressure on other networks,” Casadevall notes. “This balancing of resources is essential as more and more applications with different bandwidth needs are run over mobile devices.”

The advanced RRM algorithms were validated under real-time and realistic conditions in a testbed supporting Internet Protocol (IP)-based mobile multimedia applications with end-to-end QoS capabilities.

The testbed is being used by mobile operators involved in the project to test different RRM techniques, while the algorithms themselves are public and available for use by other operators. “Operators are likely to modify them for their individual needs and use them commercially,” Casadevall says.

The project partners have also launched a follow-up IST project, AROMA, focusing on resource management strategies and algorithms to guarantee end-to-end QoS in the context of an all-IP heterogeneous network.

Tara Morris | alfa
Further information:
http://istresults.cordis.europa.eu.int/index.cfm/section/news/tpl/article/BrowsingType/Features/ID/81237
http://istresults.cordis.lu/

More articles from Information Technology:

nachricht Next stop Morocco: EU partners test innovative space robotics technologies in the Sahara desert
09.11.2018 | Deutsches Forschungszentrum für Künstliche Intelligenz GmbH, DFKI

nachricht A burst of ”synchronous” light
08.11.2018 | Empa - Eidgenössische Materialprüfungs- und Forschungsanstalt

All articles from Information Technology >>>

The most recent press releases about innovation >>>

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

Im Focus: A Chip with Blood Vessels

Biochips have been developed at TU Wien (Vienna), on which tissue can be produced and examined. This allows supplying the tissue with different substances in a very controlled way.

Cultivating human cells in the Petri dish is not a big challenge today. Producing artificial tissue, however, permeated by fine blood vessels, is a much more...

Im Focus: A Leap Into Quantum Technology

Faster and secure data communication: This is the goal of a new joint project involving physicists from the University of Würzburg. The German Federal Ministry of Education and Research funds the project with 14.8 million euro.

In our digital world data security and secure communication are becoming more and more important. Quantum communication is a promising approach to achieve...

Im Focus: Research icebreaker Polarstern begins the Antarctic season

What does it look like below the ice shelf of the calved massive iceberg A68?

On Saturday, 10 November 2018, the research icebreaker Polarstern will leave its homeport of Bremerhaven, bound for Cape Town, South Africa.

Im Focus: Penn engineers develop ultrathin, ultralight 'nanocardboard'

When choosing materials to make something, trade-offs need to be made between a host of properties, such as thickness, stiffness and weight. Depending on the application in question, finding just the right balance is the difference between success and failure

Now, a team of Penn Engineers has demonstrated a new material they call "nanocardboard," an ultrathin equivalent of corrugated paper cardboard. A square...

Im Focus: Coping with errors in the quantum age

Physicists at ETH Zurich demonstrate how errors that occur during the manipulation of quantum system can be monitored and corrected on the fly

The field of quantum computation has seen tremendous progress in recent years. Bit by bit, quantum devices start to challenge conventional computers, at least...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

“3rd Conference on Laser Polishing – LaP 2018” Attracts International Experts and Users

09.11.2018 | Event News

On the brain’s ability to find the right direction

06.11.2018 | Event News

European Space Talks: Weltraumschrott – eine Gefahr für die Gesellschaft?

23.10.2018 | Event News

 
Latest News

Epoxy compound gets a graphene bump

14.11.2018 | Materials Sciences

Microgel powder fights infection and helps wounds heal

14.11.2018 | Health and Medicine

How algae and carbon fibers could sustainably reduce the athmospheric carbon dioxide concentration

14.11.2018 | Life Sciences

VideoLinks
Science & Research
Overview of more VideoLinks >>>