Hybrid RSS-AoA technique for 3-D node localization in wireless sensor networks

Slavisa Tomic, Milica Marikj, Marko Beko, Rui Miguel Henriques Dias Morgado Dinis, Nuno Orfao

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

25 Citations (Scopus)

Abstract

We consider 3-D target positioning in noncooperative wireless sensor network (WSN) by employing received signal strength (RSS) and angle-of-arrival (AoA) measurements. Based on the least squares (LS) criterion, we derive a novel objective function for solving the hybrid localization problem. Despite the fact that the resulting optimization problem is non-convex, we show that it can be approximated into a convex problem by applying second-order cone programming (SOCP) relaxation. Moreover, we show that the objective function can be written in the form that belongs to the generalized trust region subproblems (GTRS), which can be solved exactly. Our numerical results exhibit remarkable performance of the new approaches, reducing the estimation error for more than 5 m and 3 m, in comparison to the state-of-the-art approach.

Original languageEnglish
Title of host publicationIWCMC 2015 - 11th International Wireless Communications and Mobile Computing Conference
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1277-1282
Number of pages6
ISBN (Electronic)9781479953448
DOIs
Publication statusPublished - 2 Oct 2015
Event11th International Wireless Communications and Mobile Computing Conference, IWCMC 2015 - Dubrovnik, Croatia
Duration: 24 Aug 201528 Aug 2015

Conference

Conference11th International Wireless Communications and Mobile Computing Conference, IWCMC 2015
CountryCroatia
CityDubrovnik
Period24/08/1528/08/15

Keywords

  • angle-of-arrival (AoA)
  • generalized trust region subproblem (GTRS)
  • hybrid localization
  • non-cooperative localization
  • received signal strength (RSS)
  • second-order cone programming problem (SOCP)
  • Wireless localization
  • wireless sensor network (WSN)

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