The effects of dynamic environment on channel frequency response-based indoor positioning

Elmer R. Magsino, Wang Hei Ho, Zhenhui Situ

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

5 Citations (Scopus)

Abstract

Indoor Positioning Systems should be able to locate an object or person in a dynamic environment. In this research work, we present experimental results when performing indoor positioning in a dynamic environment when using channel frequency response as the indoor location's fingerprint. Dynamic environments introduce varying channel frequency responses for a given indoor location, which makes it difficult to locate desired indoor objects. According to our experiments, we find that indoor fingerprints become uncorrelated within a 15-min window. To bridge the gap between daily fingerprints, we propose three quick remedies in updating the Channel Frequency Response (CFR) database. These updates allow indoor localization even in the presence of dynamic environmental changes (e.g., people movement, interference of other wireless signals, etc.) and are able to 100% localize indoor locations separated by at least five (5) centimeters. We highlight that in the experiments, there is only one anchor node used to estimate the desired indoor location. Index Terms-Indoor Positioning, Channel Frequency Response, Dynamic Environment, Fingerprint Averaging.
Original languageEnglish
Title of host publication2017 IEEE International Symposium on Personal, Indoor and Mobile Radio Communications
Subtitle of host publicationEngaged Citizens and their New Smart Worlds, PIMRC 2017 - Conference Proceedings
PublisherIEEE
Pages1-6
Number of pages6
Volume2017-October
ISBN (Electronic)9781538635315
DOIs
Publication statusPublished - 14 Feb 2018
Event28th Annual IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2017 - Hotel Bonaventure, Montreal, Canada
Duration: 8 Oct 201713 Oct 2017

Publication series

NameIEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC
Volume2017-October

Conference

Conference28th Annual IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2017
Country/TerritoryCanada
CityMontreal
Period8/10/1713/10/17

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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