Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/30118
Title: Reducing group management overhead in group-based location management
Authors: Lam, GHK
Leong, HV 
Chan, SCF 
Keywords: Ad hoc networks
Client-server systems
Distributed databases
Mobile computing
Mobility management (mobile radio)
Visual databases
Issue Date: 2004
Publisher: IEEE
Source: 15th International Workshop on Database and Expert Systems Applications, 2004 : proceedings : 30 August-3 September 2004, p. 640-644 How to cite?
Abstract: Location management is fundamental in supporting location-dependent applications in a mobile environment. It is crucial to reduce the high uplink communication cost in reporting the location of mobile hosts. Group-based location updating scheme is able to exploit the spatial locality of mobile hosts to generate an aggregated location update from a group leader, thereby reducing the number of high cost individual location updates to the server. Under such a scheme, group management becomes an integral component for maintaining hosts' membership. A mechanism is needed for a mobile host to find a suitable group for joining. Those tasks induce more local messages. Based on our preliminary work, host interaction in the group finding process becomes a dominant factor in generating a high local communication overhead. Two improved variants of the group joining procedure are proposed for reducing the overhead. Performance study indicates that both variants do lead to a drastic reduction in local message count and hence the aggregated communication cost.
URI: http://hdl.handle.net/10397/30118
ISBN: 0-7695-2195-9
ISSN: 1529-4188
DOI: 10.1109/DEXA.2004.1333546
Appears in Collections:Conference Paper

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