Adaptive location management strategy combining distance-based update and sectional paging techniques

Tung, TT; Jamalipour, A

Adaptive location management strategy combining distance-based update and sectional paging techniques

Tung, TT Jamalipour, A

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Publisher:: IEEE Computer Society
Publication Type:: Conference Proceeding
Citation:: 36th Annual Hawaii International Conference on System Sciences, 2003, pp. 1 - 9
Issue Date:: 2003-01

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Field	Value	Language
dc.contributor.author	Tung, TT	en_US
dc.contributor.author	Jamalipour, A	en_US
dc.contributor.editor	Sprague, R	en_US
dc.date	2003-01-06	en_US
dc.date.issued	2003-01	en_US
dc.identifier.citation	36th Annual Hawaii International Conference on System Sciences, 2003, pp. 1 - 9	en_US
dc.identifier.isbn	0-7695-1874-5	en_US
dc.identifier.uri	http://hdl.handle.net/10453/12616
dc.description.abstract	In this paper, we develop a new adaptive scheme in which an optimal distance-based update threshold is selected not only as a function of the call-to-mobility ratio, but also as a transitional directivity index w; a new parameter introduced to give some measures of the mobile?s traveling patterns. It is assumed that when w > 1, the mobile has a greater tendency of roaming "outwards" and hence a higher probability of transition to the next ring during each movement. As a result, the defined threshold will be reached sooner incurring more update costs. A corresponding sectional paging scheme is therefore proposed to predict mobile?s likelihood of residency utilizing the information given by the estimated w . Provided that the prediction of location probability is reliable, a movement pattern with increasing directivity will justify having increased update thresholds without incurring additional paging costs. As far as the mobility characteristics are concerned, the introduction of the directivity index has successfully demonstrated its ability to make optimum decisions on a distance-based update threshold. Its advantage becomes even more significant when the theoretically determined "ideal" optimal threshold is not obtainable due to certain restrictions imposed by the network during times of high system loading. Simulation results reveal that the additional information made available about a roaming mobile?s transitional directivity could be critical to ensure that the best available sub-optimal threshold is realizable.	en_US
dc.publisher	IEEE Computer Society	en_US
dc.relation.ispartof	36th Annual Hawaii International Conference on System Sciences	en_US
dc.relation.ispartof	Hawaii International Conference on System Sciences	en_US
dc.relation.isbasedon	10.1109/HICSS.2003.1174860	en_US
dc.rights	© 2003 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.	en_US
dc.title	Adaptive location management strategy combining distance-based update and sectional paging techniques	en_US
dc.type	Conference Proceeding
utslib.location	USA	en_US
utslib.location.activity	Hawaii	en_US
utslib.for	0806 Information Systems	en_US
dc.location.activity	Hawaii	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Electrical and Data Engineering
utslib.copyright.status	closed_access
pubs.consider-herdc	false	en_US
pubs.place-of-publication	USA	en_US
pubs.start-date	2003-01-06	en_US

Abstract:

In this paper, we develop a new adaptive scheme in which an optimal distance-based update threshold is selected not only as a function of the call-to-mobility ratio, but also as a transitional directivity index w; a new parameter introduced to give some measures of the mobile?s traveling patterns. It is assumed that when w > 1, the mobile has a greater tendency of roaming "outwards" and hence a higher probability of transition to the next ring during each movement. As a result, the defined threshold will be reached sooner incurring more update costs. A corresponding sectional paging scheme is therefore proposed to predict mobile?s likelihood of residency utilizing the information given by the estimated w . Provided that the prediction of location probability is reliable, a movement pattern with increasing directivity will justify having increased update thresholds without incurring additional paging costs. As far as the mobility characteristics are concerned, the introduction of the directivity index has successfully demonstrated its ability to make optimum decisions on a distance-based update threshold. Its advantage becomes even more significant when the theoretically determined "ideal" optimal threshold is not obtainable due to certain restrictions imposed by the network during times of high system loading. Simulation results reveal that the additional information made available about a roaming mobile?s transitional directivity could be critical to ensure that the best available sub-optimal threshold is realizable.

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http://hdl.handle.net/10453/12616