NDLI: Cache satellite distribution systems: modeling and analysis

Content Provider	IEEE Xplore Digital Library
Author	Armon, A. Levy, H.
Copyright Year	2003
Description	Author affiliation: Sch. of Comput. Sci., Tel Aviv Univ., Israel (Armon, A.; Levy, H.)
Abstract	Web caches have become an integral component contributing to the improvement of the performance observed by Web clients. Content Distribution Networks (CDN) and Cache Satellite Distribution Systems (CSDS) have emerged as technologies for feeding the caches with the information clients are expected to request, ahead of time. In a Cache Satellite Distribution System (CSDS), the proxies participating in the CSDS periodically report to a central station about the requests they are receiving from their clients. The central station processes this information and selects a collection of Web documents (or "Web pages"), which it then "pushes" via a satellite broadcast to all, or some, of the participating proxies, hoping most of them will request most documents in the near future. The result is that upon such request, the documents will reside in the local cache, and will not need to be fetched. In this paper we aim at addressing the issues of how to operate the CSDS, how to design it, and how to estimate its effect. Questions of interest are 1) what classes of Web documents should be transmitted by the central station, and how they are characterized, and 2) what is the benefit of adding a particular proxy into a CSDS. We offer a model of this system that accounts for the request streams addressed to the proxies and which captures the intricate interaction between the proxy caches. Unlike models that are based only on the access frequency of the various documents, this model captures both their frequency and their locality of reference. We provide an analysis of this system that is based on the stochastic properties of the traffic streams that can be derived from HTTP logs. The model and analysis can serve as a basis for the design and efficient operation of the system.
Sponsorship	IEEE Comput. Soc. IEEE Commun. Soc. Nat. Sci. Foundation
Starting Page	240
Ending Page	250
File Size	432181
Page Count	11
File Format	PDF
ISBN	0780377524
ISSN	0743166X
DOI	10.1109/INFCOM.2003.1208676
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2003-03-30
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Satellite broadcasting Performance analysis Frequency Costs Computer science Stochastic systems Telecommunication traffic Traffic control Design methodology Process design
Content Type	Text
Resource Type	Article
Subject	Computer Science Electrical and Electronic Engineering

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
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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
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
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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