3D Underwater Sensor Network Localization

  • Authors:
  • Amin Y. Teymorian;Wei Cheng;Liran Ma;Xiuzhen Cheng;Xicheng Lu;Zexin Lu

  • Affiliations:
  • The George Washington University, Washington;The George Washington University, Washington;Michigan Technological University, Houghton;The George Washington University, Washington;National University of Defense Technology, Changsha;National University of Defense Technology, Changsha

  • Venue:
  • IEEE Transactions on Mobile Computing
  • Year:
  • 2009

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Abstract

We transform the 3D underwater sensor network (USN) localization problem into its 2D counterpart by employing sensor depth information and a simple projection technique. We first prove that a nondegenerative projection preserves network localizability. We then prove that given a network and a constant k, all of the geometric k-lateration localization methods are equivalent. Based on these results, we design a purely distributed bilateration localization scheme for 3D USNs termed as Underwater Sensor Positioning (USP). Through extensive simulations, we show that USP has the following nice features: 1) improved localization capabilities over existing 3D methods, 2) low storage and computation requirements, 3) predictable and balanced communication overhead, and 4) robustness to errors from the underwater environment.