Novel technique for efficient channel utilization in a mobile radio system

The hexagonal shape of the cells in a mobile radio system is considered as an ideal model. In practice, the borders between cells are not clearly defined but are fuzzy. If a mobile is near a cell boundary, it may well have adequate communication with more than one base station. This property has already been used by the authors to define five alternative routing techniques, whose performance was found to depend on the traffic profile of the system. In the present work, the authors explore the characteristics of the strategies and devise a method which leads to an optimum strategy. FIMA (full instantaneous and mean adaptation) is found to be the best strategy; it bounds the performance of all the others. This is to be expected, since FIMA makes full use of the traffic parameters and instantaneous states