NDLI: A robust relay node placement heuristic for structurally damaged wireless sensor networks

Content Provider	IEEE Xplore Digital Library
Author	Senel, F. Younis, M. Akkaya, K.
Copyright Year	2009
Description	Author affiliation: Department of Computer Science, Southern Illinois University Carbondale, IL 62901, USA (Akkaya, K.) \|\| Dept. of Computer Science & Elect. Engineering, University of Maryland Baltimore County, MD 21250, USA (Senel, F.; Younis, M.)
Abstract	Wireless sensor networks (WSN) can increase the efficiency of many real-life applications through the collaboration of thousands of miniaturized sensors which can be deployed unattended in inhospitable environments. Due to the harsh surroundings and violent nature of the applications, the network sometimes suffers a large scale damage that involves many nodes and would thus create multiple disjoint partitions. This paper investigates a strategy for recovering from such damage through the placement of relay nodes and promotes a novel approach. The proposed approach opts to re-establish connectivity using the least number of relays while ensuring certain quality in the formed topology. Unlike contemporary schemes that form a minimum spanning tree among the isolated segments, the proposed approach establishes a topology that resembles a spider web, for which the segments are situated at the perimeter. Such a topology not only exhibits stronger connectivity than a minimum spanning tree but also achieves better sensor coverage and enables balanced distribution of traffic load among the employed relays. The simulation results demonstrate the effectiveness of the proposed recovery algorithm.
Starting Page	633
Ending Page	640
File Size	1413082
Page Count	8
File Format	PDF
ISBN	9781424444885
ISSN	07421303
DOI	10.1109/LCN.2009.5355121
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-10-20
Publisher Place	Switzerland
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Robustness Relays Wireless sensor networks Collaboration Network topology Telecommunication traffic Sensor phenomena and characterization Computer science Large-scale systems Optimized production technology
Content Type	Text
Resource Type	Article

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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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