Cell size in hybrid wireless systems

We study, analytically and via. simulation, the impact of reducing the cell size of a wireless system on the system capacity and hand-off failure rate. First, we focus on a pure cellular system. We develop exact and approximate models for cellular systems in order to emphasize the blocking probability/forced termination probability trade-off. This trade-off motivates the problem of optimizing the system performance with respect to the cell size. For hybrid systems, we investigate how jointly optimizing the number of cells per spot-beam, and the bandwidth partitioning could improve the QoS parameters of interest. For both systems, the numerical solution is only feasible for small number of cells. For large systems, a simulation study is presented