NDLI: Maintaining Connected Coverage for Wireless Sensor Networks

Content Provider	IEEE Xplore Digital Library
Author	Jehn-Ruey Jiang Tzu-Ming Sung
Copyright Year	2008
Description	Author affiliation: Dept. of Comput. Sci. & Inf. Eng., Nat. Central Univ., Taipei (Jehn-Ruey Jiang; Tzu-Ming Sung)
Abstract	In this paper, we propose a density control algorithm for wireless sensor networks to keep as few as possible sensors in active state to achieve a connected coverage of a specific area of interest. Inactive sensors can turn off sensing modules to save energy for prolonging the network lifetime. Unlike other algorithms, the proposed one does not rely on position information or ranging information of sensors. It just requires each active sensor to periodically send two beacons of different transmission ranges. Sensors can then decide to stay active or inactive according to received beacons. When any active sensor runs out of energy or fails, one or more inactive sensors can switch to the active state to take over the surveillance responsibility. The proposed algorithm is thus of the capability of fault-tolerance. Under the assumption of sufficiently high density of sensors and the assumption of $R_{C}$ ges $2R_{S},$ the algorithm can approximate the optimal connected coverage, where $R_{C}$ and $R_{S}$ are the radio communication radius and the sensing radius of sensors, respectively. Furthermore, we perform simulation experiments to investigate the impact of the sensor density and the ratio alpha on algorithm performances, where alpha, (1/radic(3)) < alpha < 1, is the ratio of the transmission ranges of the two beacons.
Starting Page	297
Ending Page	302
File Size	340039
Page Count	6
File Format	PDF
ISBN	9780769531731
ISSN	15450678
DOI	10.1109/ICDCS.Workshops.2008.88
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-06-17
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
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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