Localization for large-scale underwater sensor networks

  • Authors:
  • Zhong Zhou;Jun-Hong Cui;Shengli Zhou

  • Affiliations:
  • Computer Science & Engineering Dept., University of Connecticut, Storrs, CT;Computer Science & Engineering Dept., University of Connecticut, Storrs, CT;Electrical & Computer Engineering Dept, University of Connecticut, Storrs, CT

  • Venue:
  • NETWORKING'07 Proceedings of the 6th international IFIP-TC6 conference on Ad Hoc and sensor networks, wireless networks, next generation internet
  • Year:
  • 2007

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Abstract

In this paper, we study the localization problem in large-scale under-water sensor networks. The adverse aqueous environments, the node mobility, and the large network scale all pose new challenges, and most current localization schemes are not applicable. We propose a hierarchical approach which divides the whole localization process into two sub-processes: anchor node localization and ordinary node localization. Many existing techniques can be used in the former. For the ordinary node localization process, we propose a distributed localization scheme which novelly integrates a 3-dimensional Euclidean distance estimation method with a recursive location estimation method. Simulation results show that our proposed solution can achieve high localization coverage with relatively small localization error and low communication overhead in large-scale 3-dimensional underwater sensor networks.