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 Safe glide at total engine failure with ELA-inside
27.02.2017 | FernUniversität in Hagen

nachricht Deep Learning predicts hematopoietic stem cell development
21.02.2017 | Helmholtz Zentrum München - Deutsches Forschungszentrum für Gesundheit und Umwelt

All articles from Information Technology >>>

The most recent press releases about innovation >>>

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

Im Focus: Safe glide at total engine failure with ELA-inside

On January 15, 2009, Chesley B. Sullenberger was celebrated world-wide: after the two engines had failed due to bird strike, he and his flight crew succeeded after a glide flight with an Airbus A320 in ditching on the Hudson River. All 155 people on board were saved.

On January 15, 2009, Chesley B. Sullenberger was celebrated world-wide: after the two engines had failed due to bird strike, he and his flight crew succeeded...

Im Focus: Breakthrough with a chain of gold atoms

In the field of nanoscience, an international team of physicists with participants from Konstanz has achieved a breakthrough in understanding heat transport

In the field of nanoscience, an international team of physicists with participants from Konstanz has achieved a breakthrough in understanding heat transport

Im Focus: DNA repair: a new letter in the cell alphabet

Results reveal how discoveries may be hidden in scientific “blind spots”

Cells need to repair damaged DNA in our genes to prevent the development of cancer and other diseases. Our cells therefore activate and send “repair-proteins”...

Im Focus: Dresdner scientists print tomorrow’s world

The Fraunhofer IWS Dresden and Technische Universität Dresden inaugurated their jointly operated Center for Additive Manufacturing Dresden (AMCD) with a festive ceremony on February 7, 2017. Scientists from various disciplines perform research on materials, additive manufacturing processes and innovative technologies, which build up components in a layer by layer process. This technology opens up new horizons for component design and combinations of functions. For example during fabrication, electrical conductors and sensors are already able to be additively manufactured into components. They provide information about stress conditions of a product during operation.

The 3D-printing technology, or additive manufacturing as it is often called, has long made the step out of scientific research laboratories into industrial...

Im Focus: Mimicking nature's cellular architectures via 3-D printing

Research offers new level of control over the structure of 3-D printed materials

Nature does amazing things with limited design materials. Grass, for example, can support its own weight, resist strong wind loads, and recover after being...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Booth and panel discussion – The Lindau Nobel Laureate Meetings at the AAAS 2017 Annual Meeting

13.02.2017 | Event News

Complex Loading versus Hidden Reserves

10.02.2017 | Event News

International Conference on Crystal Growth in Freiburg

09.02.2017 | Event News

 
Latest News

New pop-up strategy inspired by cuts, not folds

27.02.2017 | Materials Sciences

Sandia uses confined nanoparticles to improve hydrogen storage materials performance

27.02.2017 | Interdisciplinary Research

Decoding the genome's cryptic language

27.02.2017 | Life Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>