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A mobility-aware dynamic database caching scheme for wireless mobile computing and communications
KTH, Superseded Departments, Teleinformatics.ORCID iD: 0000-0002-6066-746X
1996 (English)In: Distributed and parallel databases, ISSN 0926-8782, E-ISSN 1573-7578, Vol. 4, no 3, 271-288 p.Article in journal (Refereed) Published
Abstract [en]

This paper describes a mobility-aware dynamic database caching scheme for wireless mobile computing and communications. A mobile-floating agent scheme is proposed, in which caching techniques are cognizant of the mobile nature of mobile users and the location-sensitive nature of mobile systems. The mobile-floating agent maintains a second class cache in the fixed network and employs Barbara's invalidation reports broadcasting cache consistency strategies to maintain a dynamic cache consistent with the first class cache in the mobile client. The invalidation reports broadcasting scheme is combined with knowledge of the mobility behavior of each individual mobile user and broadcasts of invalidation reports only occur within the user's mobility area. The evaluation results show that, for a large system (200 cells), this scheme can reduce the system cost by more than 87%, for even highly mobile users, compared with a fully replicated database system.

Place, publisher, year, edition, pages
Springer , 1996. Vol. 4, no 3, 271-288 p.
Keyword [en]
wireless mobile computing - dynamic data caching - allocation for mobile databases - Novel applications
National Category
Communication Systems
Research subject
URN: urn:nbn:se:kth:diva-48249DOI: 10.1007/BF00140953ISI: A1996UZ69800005OAI: diva2:457102
QC 20111118Available from: 2011-11-16 Created: 2011-11-16 Last updated: 2013-09-09Bibliographically approved

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