Aug. 30, 2004 to Sept. 3, 2004
Gary Hoi Kit Lam , The Hong Kong Polytechnic University
Hong Va Leong , The Hong Kong Polytechnic University
Stephen Chi Fai Chan , The Hong Kong Polytechnic University
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.
Gary Hoi Kit Lam, Hong Va Leong, Stephen Chi Fai Chan, "Reducing Group Management Overhead in Group-Based Location Management", DEXA, 2004, 2012 23rd International Workshop on Database and Expert Systems Applications, 2012 23rd International Workshop on Database and Expert Systems Applications 2004, pp. 640-644, doi:10.1109/DEXA.2004.1333546