Development of a software architecture for the use of dynamic metadata during negotiations between end users, terminal agents, network management systems and multimedia providers/servers.

To add data-processing functionality to the standard concept of static and mostly purely descriptive metadata.

The development of object-based, highly scalable wavelet video coding schemes.

To invent and develop new display driver concepts that profit from the availability of displays with memory or displays with built-in circuitry, and take into account the form in which the data are transported between the image source and a portable terminal.

To conceive a new driver architecture that incorporates the new driver concepts invented in the previous points.

To design new protocols that allow seamless hand-offs of portable devices in a homogeneous environment (access network level)

To develop next generation QoS-enabled mobile ad hoc networks supporting heterogeneous and fast moving terminals.

To design protocols that support QoS guarantees for mobile hosts crossing network borders in an environment composed of heterogeneous wireless access networks (intradomain level).

To improve the end-to-end quality of service of mobile networks based on approaches such as service differentiation, traffic engineering and advanced routing.

To develop advanced routing and congestion algorithms for multicasting of information towards heterogeneous mobile terminals.

To assess the potential of active networks for solving some of the above mentioned problems (e.g. multicasting, dynamic routing, etc.).

To develop algorithms for the capacity dimensioning of mobile networks (intradomain and interdomain level).

To model web-type applications using stochastic branching processes and to apply algorithmic analysis of Markov processes to develop efficient algorithms to compute performance measures.

To develop traffic models which include characteristics related to mobility, such as offered traffic defined by a spatial and temporal distribution, retrials and repeated attempts, etc.

To study generic queueing models which deal with connection and handover blocking probability in a wireless environment.

To study spatial queues allowing the integration of several stochastically dependent parameters into one model for specific wireless systems.

To model contention resolution and reservation schemes as access mechanisms for Medium Access Control (MAC) in cellular and ad-hoc networks and to use these models to derive the relevant performance measures.

To develop a generic stochastic model for the evaluation of macro- and micro-mobility solutions on the network layer.

To develop a modeling environment that allows to evaluate the performance of transport layer protocols (enhancements of TCP) operating in a wireless environment.

To study the performance of appropriate error detection and retransmission techniques (ARQ protocols) in a mobile and wireless environment.