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    Lifetime Optimization for Multi-hop Wireless Sensor Networks with Rate Distortion Constraints


    Li, James C. F. and Dey, Subhrakanti (2006) Lifetime Optimization for Multi-hop Wireless Sensor Networks with Rate Distortion Constraints. In: 2006 IEEE 7th Workshop on Signal Processing Advances in Wireless Communications. IEEE. ISBN 078039710X

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    Abstract

    In this paper we address a sensor network lifetime optimization problem, where the network is given a task of reconstructing a Gaussian source with a specified rate-distortion constraint. The multiple agents observing the source relay their information through a multihop network to a sink or a base station. Although this problem has been addressed by other authors recently, only upper and lower bounds were obtained to the optimal lifetime as the nonlinear optimization problem was approximated by linearized constraints. We show that by a clever variable substitution, the original nonlinear optimization problem can be reformulated as a convex optimization problem and can be solved by sophisticated convex optimization tools. We provide numerical results comparing our optimal lifetime with the upper and lower bounds obtained in previous work and demonstrate that those bounds are not very tight. Some possible future research directions are mentioned in the concluding remarks.

    Item Type: Book Section
    Additional Information: Cite as: J. C. F. Li and S. Dey, "Lifetime Optimization for Multi-hop Wireless Sensor Networks with Rate Distortion Constraints," 2006 IEEE 7th Workshop on Signal Processing Advances in Wireless Communications, 2006, pp. 1-5, doi: 10.1109/SPAWC.2006.346396.
    Keywords: Network Lifetime; Wireless Sensor Network (WSN); Rate Distortion; CEO problem;
    Academic Unit: Faculty of Science and Engineering > Electronic Engineering
    Faculty of Science and Engineering > Research Institutes > Hamilton Institute
    Item ID: 14462
    Identification Number: https://doi.org/10.1109/SPAWC.2006.346396
    Depositing User: Subhrakanti Dey
    Date Deposited: 26 May 2021 13:34
    Publisher: IEEE
    Refereed: Yes
    URI:

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