Performance Analysis of Movement-Based Group Location Management for Mobile Stations Riding on Transportation Systems in Cellular Systems

Group location management was proposed to reduce significant simultaneous location registration signaling loads of mobile stations (MSs) riding on a transportation system (TS) when a TS with riding MSs moves between location areas (LAs), by only registering the location information of a TS and removing location registrations of all MSs riding on a TS in cellular systems. In this paper, the performance of movement-based group location management is analyzed, from the aspect of total signaling cost, which is the sum of registration signaling cost and paging signaling cost. Then, the performance of movement-based group location management is compared with that of movement-based individual location management for varying various parameters. The results show that the movement-based group location management scheme performs much better than the movement-based individual location management scheme, and there exists an optimal movement threshold for movement-based group location management.