SAVINGS IN LOCATION MANAGEMENT COSTS LEVERAGING USER STATISTICS

The growth in the number of users in mobile communications networks and the rise in the traffic generatedby each user, are responsible for the increasing importance of Mobility Management. Within MobilityManagement, the main objective of Location Management is to enable the roaming of the user in thecoverage area. In this paper, we analyze the savings in Location Management costs obtained leveragingthe users’ statistics, in comparison with the classical strategy. In particular, we introduce two novelalgorithms to obtain the b parameters (useful terms in the calculation of location update costs for differentLocation Management strategies), utilizing a geographical study of relative positions of the cells within thelocation areas. Eventually, we discuss the influence of the different network parameters on the totalLocation Management costs savings for both the radio interface and the fixed network part, providinguseful guidelines for the optimum design of the networks.