Simulation of Enhanced UMTS Access and Core Networks

Project Manager: Dr. ir. G. Heijenk
Faculty of Computer Science
Tel: +31 53 4895693
E-mail: heijenk@cs.utwente.nl

Project website: http://seacorn.ptinovacao.pt/

 

Although UMTS is being licensed throughout Europe and implementation involves huge investments, it is recognised that, at the eve of implementation and deployment of the system, still many aspects need to be investigated. This is mainly related to the fact that there is no previous experience on mobile cellular systems operating in multi-service and multi-rate.

SEACORN targets relatively future UMTS radio networks (5 years from now). A high-performance, real-time simulator will be developed for dynamic system-level simulation and characterisation of such networks. Rather than just considering a few cells and/or a small number of users, the problem is dealt with in large scale.

SEACORN provides a fundamental contribution to the evaluation and development of Enhanced UMTS networks. It covers several aspects starting from the definition and characterisation of services and user profiles, including the modelling of the user's behaviour with respect to mobility and multimedia activity, and finally considering the optimisation of the network from both points of view: the operator's and manufacturer's view of limiting the infrastructure and maintenance costs and the user's view of being provided with high quality services (at reasonable costs implicitly given by the first point).

An additional objective of SEACORN is to investigate the user's mobility and the variety of different packet and circuit switched services including interactive multimedia services. For these services, quality-of-service and grade-of-service aspects are considered and included in the process.

The different services that can be used and provided in Enhanced UMTS networks are identified and modelled, with the emphasis on the flexibility of these models; the flexibility of the models will ensure the applicability of the results in the future. The resulting source models automatically include the impact of IP networks to the route of the traffic from application level to the base stations and vice versa. The traffic characterisation and the investigations into suitable scheduling and multiplexing methods with respect to quality-of-service leads to a better distribution of bandwidth and hence to a more efficient spectrum usage and sharing. This contributes to the above-mentioned objectives and focuses, as well as to the priority of the IST programme on "anticipating market needs" in the mobile commerce area.

Project duration: 2 years; start 1-3-2002

Project budget: 2.894 k-Euro (1.750 k-Euro funding)

Number of person/years: 22.8 fte

Project Coordinator: Portugal Telecom Inovacao S.A.

Project budget CTIT: 415.5 k-Euro, 207.7 K-Euro funding

Number of person/years CTIT: 2.8 fte