Abstract: Modeling and implementation of a system level evaluation platform based on mobile WiMAX are studied. In order to alleviate the heavy computational burden in simulating wireless channels, a distributed simulation scheme, which manages several computers in a local network, is proposed. This scheme groups channels of different mobile stations according to their cell identities, and then disassembles the channel simulator into multiple computers to achieve parallel computing and reduce simulation time. Moreover, this simulation platform provides interfaces for different algorithms, i.e., scheduling, handover, adaptive modulation and coding, and admission control, to enable scalability. Simulation results show that the proposed scheme achieves reasonable system performance in consistence with theoretical values. When 3 and 5 channel simulators are used, simulation time is reduced by 36.2% and 60.3%, respectively.

Key words: mobile WiMAX (IEEE 802.16e), system level simulation, distributed computation, parallel computation