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A Mobility-Aware Dynamic Database Caching Scheme for Wireless Mobile Computing and Communications
KTH, Superseded Departments, Microelectronics and Information Technology, IMIT.
KTH, Superseded Departments, Teleinformatics.ORCID iD: 0000-0002-6066-746X
1996 (English)In: Databases and Mobile Computing / [ed] Daniel Barbara, Ravi Jain, and Narayanan Krishnakuma, Kluwer , 1996, 69-86 p.Chapter in book (Refereed)
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
Kluwer , 1996. 69-86 p.
National Category
Communication Systems
Research subject
SRA - ICT
Identifiers
URN: urn:nbn:se:kth:diva-46775DOI: 10.1007/978-0-585-26636-7_5OAI: oai:DiVA.org:kth-46775DiVA: diva2:454171
Note
QC 20111107Available from: 2011-11-06 Created: 2011-11-06 Last updated: 2013-09-09Bibliographically approved

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Publisher's full texthttp://dx.doi.org/10.1007/978-0-585-26636-7_5

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Maguire Jr., Gerald Q.

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