Collaborative localization: Enhancing WiFi-based position estimation with neighborhood links in clusters

Li-Wei Chan*, Ji Rung Chiang, Yi Chao Chen, Chia Nan Ke, Jane Hsu, Hao Hua Chu

*Corresponding author for this work

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

47 Scopus citations

Abstract

Location-aware services can benefit from accurate and reliable indoor location tracking. The widespread adoption of 802.11x wireless LAN as the network infrastructure creates the opportunity to deploy WiFi-based location services with few additional hardware costs. While recent research has demonstrated adequate performance, localization error increases significantly in crowded and dynamic situations due to electromagnetic interferences. This paper proposes collaborative localization as an approach to enhance position estimation by leveraging more accurate location information from nearby neighbors within the same cluster, The current implementation utilizes ZigBee radio as the neighbor-detection sensor. This paper introduces the basic model and algorithm for collaborative localization. We also report experiments to evaluate its performance under a variety of clustering scenarios. Our results have shown 28.2-56% accuracy improvement over the baseline system Ekahau, a commercial WiFi localization system.

Original languageEnglish
Title of host publicationPervasive Computing - 4th International Conference, PERVASIVE 2006, Proceedings
PublisherSpringer Verlag
Pages50-66
Number of pages17
ISBN (Print)3540338942, 9783540338949
DOIs
StatePublished - 1 Jan 2006
Event4th International Conference on Pervasive Computing, PERVASIVE 2006 - Dublin, Ireland
Duration: 7 May 200610 May 2006

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume3968 LNCS
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349

Conference

Conference4th International Conference on Pervasive Computing, PERVASIVE 2006
CountryIreland
CityDublin
Period7/05/0610/05/06

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