A Simulation Setup Validation Framework for Modeling Architectures and Algorithms in Designing Large Scale Wireless Communication Systems

Channel allocation is one of the fundamental issues in designing wireless communications systems due to the fact that it determines how the available bandwidth will be managed over the changeable user demands. The limited channel capacity and the increasing requirements for advanced services such as real time video grant channel allocation strategies a special role. Plethora of channel allocation strategies have been proposed in the literature for supporting GSM and 3G communication as well as multimedia data services and tested through generic or specific simulation architectures for medium size networks. The problem, however, still remains, that is how reliable are the simulation results attained, compared to the performance of real world mobile communication systems. In large scale networks, the problem is getting even worse, since generic simulation systems are well adapted to medium scale problems but not to higher complexity systems, where the traffic conditions cannot be predicted. Therefore, some strategies should be involved to investigate the validity of the simulation models implemented in the proposed simulators. This paper, presents a validation framework for such simulation systems based on an architecture involving a hierarchy of several key components in order to manage this important issue. Some initial experimental results are compared favourably to the theoretical ones. Key-words: Simulation Systems, Validation Framework, Bandwidth management, voice services, multimedia services, Channel allocation,