Performance Measures of Mobile Communication in a Hierarchical Cellular System

This paper present a comprehensive performance analysis of two low layer (picocell and femto cell) hierarchical cellular network using fluid flow mobility model. Mobile subscribers are divided into two classes: low and high mobile subscribers. Each of the originating and handoff calls of both slow and fast mobile subscribers initially ask for a channel in a femtocell.Picocell is overlaid over the femtocells to handle overflow calls. The request is accommodated by the target femtocell if there is any idle traffic channel in the cell. We investigate the several wireless system perimeters such as blocking probability of calls, force termination probability of calls for this model. When the total traffic load of the system is not very heavy, this scheme has the best and efficient use of bandwidth and provides better QoS to mobile subscribers.