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WiFi Location Fingerprint Indoor Positioning Method Based on WKNN

  • Xinxin Wang
  • , Danyang Qin*
  • , Lin Ma
  • *Corresponding author for this work
  • Heilongjiang University

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

Abstract

Wireless Fidelity (WiFi) based fingerprint indoor positioning can directly utilize existing commercial WiFi devices, the deployment cost is low, easy to expand, and has good non-invasiveness, which has gradually become a hot spot of indoor positioning technology researchers. The positioning method of this paper combines the Received Signal Strength (RSS) ranging method and the location fingerprint method. On this basis, the Weighted K-Nearest Neighbor (WKNN) matching algorithm is used to match the fingerprint data in the location fingerprint database. In view of the strong problem of indoor wireless signal oscillation, this paper uses Kalman filtering method to process the signal strength value. The simulation is carried out under the MATLAB platform. The results show that the proposed method is superior to the existing K-Nearest Neighbors (KNN) and Nearest Neighbors (NN) algorithms in the same simulation environment, which significantly improves the indoor positioning accuracy.

Original languageEnglish
Title of host publicationCommunications, Signal Processing, and Systems - Proceedings of the 8th International Conference on Communications, Signal Processing, and Systems, CSPS 2019
EditorsQilian Liang, Wei Wang, Xin Liu, Zhenyu Na, Min Jia, Baoju Zhang
PublisherSpringer
Pages1589-1596
Number of pages8
ISBN (Print)9789811394089
DOIs
StatePublished - 2020
Event8th International Conference on Communications, Signal Processing, and Systems, CSPS 2019 - Urumqi, China
Duration: 20 Jul 201922 Jul 2019

Publication series

NameLecture Notes in Electrical Engineering
Volume571 LNEE
ISSN (Print)1876-1100
ISSN (Electronic)1876-1119

Conference

Conference8th International Conference on Communications, Signal Processing, and Systems, CSPS 2019
Country/TerritoryChina
CityUrumqi
Period20/07/1922/07/19

Keywords

  • Kalman filter
  • RSS
  • WKNN
  • WiFi fingerprint location

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