NDLI: Hybrid Cache Invalidation Schemes in Mobile Environments

Content Provider	IEEE Xplore Digital Library
Author	Yuliang Bao Alhajj, R. Barker, K.
Copyright Year	2004
Description	Author affiliation: University of Calgary, Canada (Yuliang Bao)
Abstract	To make cached data consistent, the server periodically broadcasts an invalidation report to all mobile clients in its cell so that each can invalidate obsolete data items from its local cache. In this paper, we present two hybrid cache invalidation schemes: Hybrid cache invalidation with Simple Broadcasting (HSB), and Hybrid cache invalidation with Attribute Bit Sequence Broadcasting (HABSB). In these schemes the server is stateful as it stores the caching information of each mobile client in its cell to allow for long disconnections. However, the server periodically broadcasts an invalidation report similar to a stateless server. In HABSB, attribute bit sequences are added in each broadcasted invalidation report to maximize the cache-hit ratio and to reduce the data transmission of queried data items. The simulation results show that HSB and HABSB can significantly reduce the bandwidth requirement, and HABSB is very efficient in improving mobile caching.
Starting Page	209
Ending Page	218
File Size	1052088
Page Count	10
File Format	PDF
ISBN	0769525350
DOI	10.1109/PERSER.2004.16
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2004-07-19
Publisher Place	Lebanon
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Network servers Broadcasting Mobile computing Transaction databases Wireless communication Monitoring Computer science Data communication Computational modeling Bandwidth wireless communication cache consistency cache invalidation report mobile computing
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
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9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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