NDLI: Locus: a location-based data overlay for disruption-tolerant networks

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Content Provider	ACM Digital Library
Author	Crepaldi, Riccardo Thompson, Nathanael Kravets, Robin
Abstract	Embedded sensors in mobile devices such as cars and smart phones present new opportunities to collect location-specific data about an environment. This data can be used to enable new real-time location-based applications. A major challenge is efficiently collecting, storing and sharing the data. This paper proposes Locus, a location-based data overlay for DTNs. Locus keeps objects at specific physical locations in the network using whatever devices currently are nearby. Nodes copy objects between themselves to maintain the locality of data. Location utility functions prioritize objects for replication and enable location-based forwarding of data look-ups. As a first-of-its-kind application, Locus is compared against other possible replication policies and shown to achieve query success rates nearly 4 times higher than other approaches.
Starting Page	47
Ending Page	54
Page Count	8
File Format	PDF
ISBN	9781450301398
DOI	10.1145/1859934.1859945
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2010-09-24
Publisher Place	New York
Access Restriction	Subscribed
Subject Keyword	Data overlay Location-based Dtn
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
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Locus: a location-based data overlay for disruption-tolerant networks