Power-absorption-based model for power compensation inWLAN positioning using smartphone

Masaaki Yamamoto, Tomoaki Ohtsuki

Research output: Contribution to journalArticle

Abstract

To achieve accurate wireless-local-area-network (WLAN) positioning, the directivity and influence of multipath fading on the power absorption by the user are clarified experimentally. Based on the results, a general model of the power absorption by the user is devised. The parameters of the model are estimated using maximum-likelihood estimation (MLE) and the magnetic sensor built into modern smartphones. The proposed method compensates the power absorption and the influence of multipath fading. According to experimental evaluations, the root-mean-square error (RMSE) of the proposed method is 34% lower than that of the conventional one. Namely, RMSE of the proposed method is 1.94m in a room.

Original languageEnglish
Pages (from-to)1125-1132
Number of pages8
JournalIEICE Transactions on Communications
VolumeE98B
Issue number6
DOIs
Publication statusPublished - 2015 Jun 1

Keywords

  • Indoor
  • Positioning
  • Smartphone
  • Wlan

ASJC Scopus subject areas

  • Software
  • Computer Networks and Communications
  • Electrical and Electronic Engineering

Fingerprint Dive into the research topics of 'Power-absorption-based model for power compensation inWLAN positioning using smartphone'. Together they form a unique fingerprint.

  • Cite this