Rising to the challenge of managing bandwidth

Mar 29, 2006
Rising to the challenge of managing bandwidth

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.

Source: IST Results

Explore further: An eel-lectrifying future for autonomous underwater robots

add to favorites email to friend print save as pdf

Related Stories

Recommended for you

GoGlove wearable aims to control life's soundtracks

26 minutes ago

Technology creatives are seeing the key attraction in wearables as being in solutions that save the user from fumbling around with the phone to make app adjustments or changes, or from repeatedly taking it ...

Amazon cuts Fire phone price to ignite sales

45 minutes ago

Amazon on Wednesday slashed the price of Fire mobile phones that stalled after launch early this year, becoming a drag on the US online retail titan's bottom line.

Thanksgiving travel woes? There's an app for that

51 minutes ago

Traveling by plane, train or automobile can be a headache. Mixing in Thanksgiving can make it a throbbing migraine. Technology provides some pain relief in the form of apps to let you know which roads are ...

US agency threatens to act against air bag maker

1 hour ago

A dispute between U.S. safety regulators and air bag maker Takata Corp. escalated Wednesday when the government threatened fines and legal action if the company fails to admit that driver's side air bag inflators ...

Netflix sues Yahoo CIO for alleged kickbacks

1 hour ago

Netflix is suing a former company vice president who is now chief information officer at Yahoo, accusing him of receiving money from vendors he hired to work with the video streaming company.

User comments : 0

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.