NDLI: Push-based information delivery in two stage satellite-terrestrial wireless systems

Content Provider	IEEE Xplore Digital Library
Author	Ercetin, O. Tassiulas, L.
Copyright Year	1968
Abstract	One of the prominent objectives of National/Global Information Infrastructure is to provide all types of users global access to information. Satellite broadcast data delivery has inherent advantages, such as scalability and location independent availability, in achieving this objective. However, users need expensive and cumbersome equipment to receive and transmit satellite signals. Furthermore, as the amount of information being broadcast increases, average user latency increases as well. Often, users in a geographical locality have similar interests, which can be better served by employing a local broadcast schedule. In this context, a two stage satellite terrestrial wireless broadcast system can provide more efficient service in terms of lower average user latency and cheaper and more convenient user equipment. In such a system, the main server broadcasts information via satellite to the geographically distributed local ground stations. Every ground station has limited buffer capacity to store the data broadcast by the satellite. According to their buffer content, and the interests of their users, local stations deliver the information to their users via terrestrial wireless channel. We develop novel methods for the joint cache management and scheduling problem encountered in these systems. Our results demonstrate that such two stage systems are feasible and they can provide more efficient data delivery compared to the single stage systems.
Sponsorship	IEEE Computer Society Technical Committee on Distributed Process IEEE Computer Society Technical Committee on VLSI IEEE Technical Committee on Computer Architecture IEEE Computer Society
Starting Page	506
Ending Page	518
Page Count	13
File Size	371900
File Format	PDF
ISSN	00189340
Volume Number	50
Issue Number	5
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2001-05-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Satellite broadcasting Delay Scalability Satellite ground stations Satellite communication Context-aware services Buffer storage Wireless networks Availability Web and internet services
Content Type	Text
Resource Type	Article
Subject	Theoretical Computer Science Computational Theory and Mathematics Software Hardware and Architecture

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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