NDLI: Optimizing tree reconfiguration for mobile target tracking in sensor networks

Content Provider	IEEE Xplore Digital Library
Author	Wensheng Zhang Guohong Cao
Copyright Year	2004
Description	Author affiliation: Dept. of Comput. Sci. & Eng., Pennsylvania State Univ., University Park, PA, USA (Wensheng Zhang; Guohong Cao)
Abstract	Sensor nodes have limited sensing range and are not very reliable. To obtain accurate sensing data, many sensor nodes should he deployed and then the collaboration among them becomes an important issue. In W. Zhang and G. Cao, a tree-based approach has been proposed to facilitate sensor nodes collaborating in detecting and tracking a mobile target. As the target moves, many nodes in the tree may become faraway from the root of the tree, and hence a large amount of energy may be wasted for them to send their sensing data to the root. We address the tree reconfiguration problem. We formalize it as finding a min-cost convoy tree sequence, and solve it by proposing an optimized complete reconfiguration scheme and an optimized interception-based reconfiguration scheme. Analysis and simulation are conducted to compare the proposed schemes with each other and with other reconfiguration schemes. The results show that the proposed schemes are more energy efficient than others.
Starting Page	2434
Ending Page	2445
File Size	790275
Page Count	12
File Format	PDF
ISBN	0780383559
ISSN	0743166X
DOI	10.1109/INFCOM.2004.1354665
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2004-03-07
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Target tracking Intelligent networks Sensor phenomena and characterization Collaboration Wireless sensor networks Energy efficiency Condition monitoring Aggregates Computer science Reliability engineering
Content Type	Text
Resource Type	Article
Subject	Computer Science Electrical and Electronic Engineering

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