Resource allocation in urban micro-cellular systems

We assess the performance of a micro-cellular system in a Manhattan street environment, with high user density and high-rise structures. A model is developed in which the channel assignment is distributed and is governed by the interference environment (C/I). Full user mobility is supported, and interference at both the portable and cell site is dynamically updated. The system performance is addressed through blocking and forced termination probabilities, throughput and call quality. The optimality of both the cell site positioning and the distribution of radio fixed parts is addressed. We compare two optimal positioning schemes for the cell sites, and propose an optimal cell size as a function of the traffic load