title: Modeling and performance analysis of movement-based group location management using RFID sensing in public transportation systems.
abstract: Location management, which consists of location registration and paging, is essential to provide mobile communication services to mobile stations (MSs). Since MSs riding on a public transportation system (TS) generates significant location registration signaling loads simultaneously when a TS with riding MSs moves between location areas (LAs), group location management was proposed. Under the group location management, an MS performs group registration when it gets on a TS and performs group deregistration when it gets off a TS. Then, only a TS updates its current location when it changes LA, on behalf of all riding MSs. In this paper, movement-based group location management using radio frequency identification (RFID) is proposed, where the MS's getting on and getting off behaviors are detected using RFID and only location update of a TS is carried out if the number of crossed cells from the last updated cell exceeds a predefined movement threshold, on behalf of all riding MSs. Then, we develop an analytical model for the performance analysis of the movement-based group location management and analyze the effects of various parameters on the performance. The results show that the movement-based group location management has reduced signaling cost compared with movement-based individual location management, and optimal performance can be achieved by choosing appropriate movement threshold values.
authors: School of Electronic Engineering, Soongsil University, 511 Sangdo-dong, Dongjak-Gu, Seoul 156-743, Korea. ywchung@ssu.ac.kr
authors: Yun Won
authors: YW
authors: Chung
mesh_terms: D006801:Humans; D008962:Models, Theoretical; D009068:Movement; D057233:Radio Frequency Identification Device; D011846:Radio Waves; D014186:Transportation