Community Research and Development Information Service - CORDIS

Middleware for high quality mobile networks

University research has generated middleware technology capable to offer users on the move quality access to multimedia services in the wired network.
Middleware for high quality mobile networks
Mobile network multimedia systems often display serious problems that researchers are challenged to resolve. For instance, multimedia flows related to a mobile device from a base station to another have to be performed in a timely manner without significant interruptions. Additionally, there is often inefficiency in the multimedia transport systems that operate in environments featuring mobility and fluctuating networks.

Therefore, mobile and ubiquitous network accessibility depends highly not only on the seamless integration of wireless devices, but also on the dynamic differentiation of Quality of Service (QoS). QoS requirements such as throughput, priority and transit delay are important performance characteristics of a network service. Especially for the streaming of multimedia flows, change of device and/or user's location may impose significant problems.

To answer this need the proposed technology involves agent-based middleware, including both hardware devices and software for the effective management of QoS in mobile settings. Its integration with current systems has led to the generation of a Virtual Server for management of data streaming at a lower level. With the aid of Internet protocols such as the Real Time Protocol (RTP) and the Rapid Spanning Tree Protocol (RSTP), communications are effectively managed offering increased stability during the streaming.

The new technology allows mobile users to connect to the most convenient resource that safeguards satisfactory levels of QoS during roaming from one cell to another. The key innovation relies in the use of mobile agents that feature mobility, asynchronicity and autonomy. The prototype has already been experimentally tested showing its promising potential. Collaboration is sought with telecommunications companies and/or research institutes for further research and development support.
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