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Sensors 2012, 12(12), 16077-16098; doi:10.3390/s121216077
Article

Modeling and Performance Analysis of Movement-Based Group Location Management Using RFID Sensing in Public Transportation Systems

School of Electronic Engineering, Soongsil University, 511 Sangdo-dong, Dongjak-Gu, Seoul 156-743, Korea
Received: 7 September 2012 / Revised: 30 October 2012 / Accepted: 31 October 2012 / Published: 22 November 2012
(This article belongs to the Special Issue Ubiquitous Sensing)
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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.
Keywords: radio frequency identification (RFID); location management; paging; group; movement-based; transportation system; cellular system radio frequency identification (RFID); location management; paging; group; movement-based; transportation system; cellular system
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).
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Chung, Y.W. Modeling and Performance Analysis of Movement-Based Group Location Management Using RFID Sensing in Public Transportation Systems. Sensors 2012, 12, 16077-16098.

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