Publication detail

Impact of Different Distance Estimation Methods on Anchor-Free Localization Accuracy

ŠIMEK, M. NOVÁČEK, A. KOMOSNÝ, D. MORÁVEK, P.

Original Title

Impact of Different Distance Estimation Methods on Anchor-Free Localization Accuracy

English Title

Impact of Different Distance Estimation Methods on Anchor-Free Localization Accuracy

Type

conference paper

Language

en

Original Abstract

Localization of nodes in wireless sensor networks is area of interest of many research team in the world. Up to date lots of efficient algorithm were already proposed. These can be generally divided into i) anchor-based, algorithms taking advantage of location aware nodes deployed in priori and ii) anchor-free algorithms performing without no superior coordinate system exploitation. Anchor free algorithms work in incremental or concurrent manner. It was proved by recent investigations that concurrent algorithms outperform the incremental in accuracy issue, however during localization dissipate more energy reserves. For some scenarios, outdoor wireless nodes supplied by solar energy e.g., the energy conservation is not priori metric for optimization. We took a most cited concurrent algorithm AFL (Anchor-Free Localization) and compare its accuracy under two known distance estimation methods such as hop counts and signal strength measurement. Further more we have proposed a novel metric WSSM (Weighted Signal Strength Measurement) and compare its efficiency with known mentioned methods. Results of simulation show that WSSM method is effective solution for networks deployed in noisy environment.

English abstract

Localization of nodes in wireless sensor networks is area of interest of many research team in the world. Up to date lots of efficient algorithm were already proposed. These can be generally divided into i) anchor-based, algorithms taking advantage of location aware nodes deployed in priori and ii) anchor-free algorithms performing without no superior coordinate system exploitation. Anchor free algorithms work in incremental or concurrent manner. It was proved by recent investigations that concurrent algorithms outperform the incremental in accuracy issue, however during localization dissipate more energy reserves. For some scenarios, outdoor wireless nodes supplied by solar energy e.g., the energy conservation is not priori metric for optimization. We took a most cited concurrent algorithm AFL (Anchor-Free Localization) and compare its accuracy under two known distance estimation methods such as hop counts and signal strength measurement. Further more we have proposed a novel metric WSSM (Weighted Signal Strength Measurement) and compare its efficiency with known mentioned methods. Results of simulation show that WSSM method is effective solution for networks deployed in noisy environment.

Keywords

wireless sensor networks, anchor-free, localization, distance estimation, simulation

Released

17.08.2010

ISBN

978-963-88981-0-4

Book

The 33rd International Conference on Telecommunication and Signal Processing, TSP 2010

Pages from

57

Pages to

63

Pages count

6

BibTex


@inproceedings{BUT35842,
  author="Milan {Šimek} and Aleš {Nováček} and Dan {Komosný} and Patrik {Morávek}",
  title="Impact of Different Distance Estimation Methods on Anchor-Free Localization Accuracy",
  annote="Localization of nodes in wireless sensor networks is
area of interest of many research team in the world. Up to date
lots of efficient algorithm were already proposed. These can be
generally divided into i) anchor-based, algorithms taking advantage
of location aware nodes deployed in priori and ii) anchor-free
algorithms performing without no superior coordinate system
exploitation. Anchor free algorithms work in incremental or
concurrent manner. It was proved by recent investigations that
concurrent algorithms outperform the incremental in accuracy
issue, however during localization dissipate more energy reserves.
For some scenarios, outdoor wireless nodes supplied by solar
energy e.g., the energy conservation is not priori metric for
optimization. We took a most cited concurrent algorithm AFL
(Anchor-Free Localization) and compare its accuracy under two
known distance estimation methods such as hop counts and signal
strength measurement. Further more we have proposed a novel
metric WSSM (Weighted Signal Strength Measurement) and
compare its efficiency with known mentioned methods. Results
of simulation show that WSSM method is effective solution for
networks deployed in noisy environment.",
  booktitle="The 33rd International Conference on Telecommunication and Signal Processing, TSP 2010",
  chapter="35842",
  howpublished="online",
  year="2010",
  month="august",
  pages="57--63",
  type="conference paper"
}