Optimum alternative routing strategy for mobile radio systems

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 performances were found to depend on the traffic profile of the system. In the present work, they explore the characteristics of the strategies and devise a method which leads to an optimum strategy. Full instantaneous and mean adaptation (FIMA) was found to be the best strategy; it bounds the performance of all the other ones