Performance Analysis of Distance-based Registration with 4-Directional Mobility Model

Abstract

In this study, we consider a 4-directional mobility model applicable in the metropolitan area to calculate the number of location registrations per mobile station (MS) for the zone-based (ZBR) and distance-based (DBR) registration schemes. The number of location registrations between two incoming calls are obtained mathematically assuming that the MSs are uniformly distributed in the location area (LA), and the mathematical results are verified through computer simulations. The comparison between analytical results and computer simulations shows that, in ZBR, MSs are uniformly distributed in the LA after turning, but they are not uniformly distributed in LA for DBR. It is also observed by computer simulations that, when the moving distance between turning points is smaller compared to the distance between incoming calls or LA’s radius, DBR outperforms ZBR in most cases.