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A joint optimization of data ferry trajectories and communication powers of ground sensors for long-term environmental monitoring

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Abstract

Recently, various hybrid wireless sensor networks which consist of several robotic vehicles and a number of static ground sensors have been investigated. In this kind of system, the main role of the mobile nodes is to deliver the messages produced by the sensor nodes, and naturally their trajectory control becomes a significant issue closely related to the performance of the entire system. Previously, several communication power control strategies such as topology control are investigated to improve energy-efficiency of wireless sensor networks. However, to the best of our knowledge, no communication power control strategy has been investigated in the context of the hybrid wireless sensor networks. This paper introduces a new strategy to utilize the communication power control in multiple data ferry assisted wireless sensor network for long-term environmental monitoring such that the lifetime of the sensor network is maximized. We formally define the problem of our interest and show it is NP-hard. We further prove there exists no approximation algorithm for the problem which can produce a feasible solution for every possible problem instance even though there is a feasible solution. Then, we propose heuristic algorithms along with rigorous theoretical performance analysis for both the single data ferry case and the multiple data ferry case under certain condition.

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Acknowledgments

This research was supported in part by US National Science Foundation (NSF) CREST No. HRD-1345219. It was also partly supported by National Natural Science Foundation of China 530 under Grant No. 11471005. This paper was jointly supported by National Natural Science Foundation of China under Grant 91124001, the Fundamental Research Funds for the Central Universities, and the Research Funds of Renmin University of China 10XNJ032.

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Authors and Affiliations

  1. Division of Algorithms and Technologies for Networks Analysis, Faculty of Information Technology, Ton Duc Thang University, Ho Chi Minh City, Vietnam

    Donghyun Kim

  2. Department of Mathematics and Physics, North Carolina Central University, Durham, NC, 27707, USA

    Donghyun Kim & Alade O. Tokuta

  3. School of Mathematics and Statistics, Xi’an Jiaotong University, Xi’an, China

    Wei Wang

  4. School of Information, Renmin University of China, Beijing, People’s Republic of China

    Deying Li

  5. Department of Computer Science, University of Texas at Dallas, Richardson, USA

    Joong-Lyul Lee & Weili Wu

Authors
  1. Donghyun Kim
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  2. Wei Wang
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  3. Deying Li
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  4. Joong-Lyul Lee
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  5. Weili Wu
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  6. Alade O. Tokuta
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Correspondence to Wei Wang.

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Kim, D., Wang, W., Li, D. et al. A joint optimization of data ferry trajectories and communication powers of ground sensors for long-term environmental monitoring. J Comb Optim 31, 1550–1568 (2016). https://doi.org/10.1007/s10878-015-9840-7

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  • DOI: https://doi.org/10.1007/s10878-015-9840-7

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