NDLI: Transmission Schemes for Lifetime Maximization in Wireless Sensor Networks: Uncorrelated Source Observations

Content Provider	IEEE Xplore Digital Library
Author	Xiaolu Zhang Meixia Tao Chun Sum Ng
Copyright Year	2007
Description	Author affiliation: Nat. Univ. of Singapore, Singapore (Xiaolu Zhang; Meixia Tao; Chun Sum Ng)
Abstract	We study transmission schemes for lifetime maximization in wireless sensor networks. Specifically we consider the network where all the sensors observe uncorrelated signals and forward the quantized observations to a common fusion center. We demonstrate how the minimum node lifetime is maximized under individual estimation accuracy constraints through adapting transmission times and powers assigned to different sensor nodes. A partially distributed algorithm is proposed to implement joint time sharing and power control, for which each sensor node only needs local information and little common information. In addition, we obtain a necessary and sufficient condition for convergence of the algorithm. Simulation results show a significant lifetime gain over existing schemes, especially when the sensing environment becomes more heterogeneous and the number of nodes increases.
Starting Page	3694
Ending Page	3698
File Size	146655
Page Count	5
File Format	PDF
ISBN	9781424410422
DOI	10.1109/GLOCOM.2007.701
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-11-26
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Wireless sensor networks Power control Energy consumption Sensor fusion Distributed algorithms Time sharing computer systems Wireless LAN Resource management Quantization Energy resolution
Content Type	Text
Resource Type	Article

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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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