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ANFIS indoor positioning system based on improved-GA in WLAN environment

  • Jiayin Wang*
  • , Lin Ma
  • , Yubin Xu
  • , Limin Li
  • *Corresponding author for this work
  • School of Electronics and Information Engineering, Harbin Institute of Technology

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

Abstract

This paper proposes an ANFIS indoor positioning system based on improved genetic algorithm (GA). In the offline phase, fuzzy rules are abstracted by means of subtractive clustering algorithm with training data, generating the structure of each ANFIS positioning subsystem in X and Y directions. Then each positioning subsystem is trained with improved-GA. In this training algorithm, BP algorithm acts as an operator of GA, thus fully integrating the global search ability of GA and the local search ability of BP. On the other hand, advanced methods such as migration and adaptive mutation probability are also adopted, thus greatly accelerating the convergence of error and achieving the purpose of fast global optimization. Experimental results indicate that this algorithm can achieve a positioning error within 3m with an average positioning error of 1.2965m, meeting the needs in most practical applications. Moreover, it outperforms other positioning algorithms such as BP-ANN and BP-ANFIS positioning systems.

Original languageEnglish
Title of host publicationProceedings - 2011 3rd International Conference on Intelligent Human-Machine Systems and Cybernetics, IHMSC 2011
Pages147-151
Number of pages5
DOIs
StatePublished - 2011
Externally publishedYes
Event3rd International Conference on Intelligent Human-Machine Systems and Cybernetics, IHMSC 2011 - Hangzhou, China
Duration: 26 Aug 201127 Aug 2011

Publication series

NameProceedings - 2011 3rd International Conference on Intelligent Human-Machine Systems and Cybernetics, IHMSC 2011
Volume2

Conference

Conference3rd International Conference on Intelligent Human-Machine Systems and Cybernetics, IHMSC 2011
Country/TerritoryChina
CityHangzhou
Period26/08/1127/08/11

Keywords

  • ANFIS
  • BP
  • GA
  • WLAN
  • indoor positioning

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