Beacon selection for localisation in IEEE 802.11 wireless infrastructure

  • Authors:

  • Ryangsoo Kim;Hyuk Lim;Daewon Jung;Kapjin Kim

  • Affiliations:

  • School of Information and Communications, Gwangju Institute of Science and Technology, Gwangju 500-712, Republic of Korea;School of Information and Communications, Gwangju Institute of Science and Technology, Gwangju 500-712, Republic of Korea;Creative R&D Planning Department, The Attached Institute of ETRI, Daejeon 305-390, Republic of Korea;The 3rd R&D Institute, Agency for Defense Development ADD, Daejeon 305-152, Republic of Korea

  • Venue:
  • International Journal of Ad Hoc and Ubiquitous Computing
  • Year:
  • 2013

Quantified Score

Hi-index 0.00

Visualization

Abstract

Given the widespread deployment of IEEE 802.11-based access points APs, received signal strength RSS-based localisation algorithms, which estimate the location of clients by measuring RSS at the installed APs, have drawn considerable attention. However, the accuracy of RSS-based localisation depends heavily on the RF and geometry characteristics between the client and the APs. In order to improve the localisation accuracy, the selection of an appropriate AP set without outliers is an important and challenging issue. In this paper, we first propose to use Cramér-Rao Bound, obtained from the average Fisher Information Matrix, as a criterion for selecting an appropriate AP set. Then, based on the proposed selection criterion, we develop a batch beacon selection algorithm that searches all the possible AP sets. Furthermore, to implement real-time mobile client localisation by alleviating computational complexity, we devise an online beacon selection algorithm.