NDLI: Supporting video on demand

Content Provider	IEEE Xplore Digital Library
Author	Murphy, M.C. Golshani, F.
Copyright Year	1996
Description	Author affiliation: Dept. of Comput. Sci., San Francisco State Univ., CA, USA (Murphy, M.C.)
Abstract	We examine I/O scheduling strategies for maximizing the number of concurrent streams that can be supported by a VOD system implemented using current midrange device technologies. The overall VOD system is modeled as a collection of resources, characterized by their bandwidths and capacities. We determine limits on the maximum number of concurrent streams possible for various I/O subsystem configurations. We then propose several practical I/O scheduling algorithms and determine the amount of memory required at both the disk and server to support the limiting number of concurrent streams. An admission control policy is proposed for limited memory environments. Finally, we discuss client request (workload) distributions and data placement strategies and their effects on the number of concurrent streams and memory buffer requirements. If the client video requests are not badly skewed (as quantified below) and if sufficient memory is available on both the disk on-board cache and server, our practical algorithms can support the maximum number of concurrent streams allowed by the I/O subsystem configuration.
Starting Page	29
Ending Page	36
File Size	993948
Page Count	8
File Format	PDF
ISBN	0780332555
DOI	10.1109/PCCC.1996.493609
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1996-03-27
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Video on demand Streaming media Motion pictures Computer science Processor scheduling Bandwidth Scheduling algorithm Network servers Resumes Displays
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
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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