Populating virtual access points for localization in sparse wireless networks

Seungho Yoo, Hwangnam Kim

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Even though many GPS-free localization algorithms have been proposed to provide reliable positions with high levels of accuracy, most of them, such as centroid, fingerprint, or their variant versions, should require three or more Access Points (APs) to provide sufficient signals for the device. Thus when enough number of APs do not exist in the proximity of the device, the level of position accuracy is deteriorated. In this paper, we present a localization framework of populating virtual access points for localization in sparse wireless networks that can estimate the device position in the environment where the device cannot obtain GPS signal nor sufficient number of AP beacon frames. The proposed framework first gathers beacon frames of adjacent APs periodically and stores the frame information into a device database, then it chooses an adequate number of adjacent APs from the database, and finally it performs a localization algorithm with the chosen APs. To verify the accuracy and robustness of the proposed system, we conducted an experiment in an indoor environment where the deficient number of APs provide their own information, and compared the proposed framework with the original localization algorithm. The results indicate that the proposed framework can pinpoint the current location with acceptable errors in wireless networks with sparse coverage.

Original languageEnglish
Title of host publicationProceedings - 2012 8th International Conference on Mobile Ad Hoc and Sensor Networks, MSN 2012
Pages183-190
Number of pages8
DOIs
Publication statusPublished - 2012
Event2012 8th International Conference on Mobile Ad Hoc and Sensor Networks, MSN 2012 - Chengdu, Sichuan, China
Duration: 2012 Dec 142012 Dec 16

Publication series

NameProceedings - 2012 8th International Conference on Mobile Ad Hoc and Sensor Networks, MSN 2012

Other

Other2012 8th International Conference on Mobile Ad Hoc and Sensor Networks, MSN 2012
CountryChina
CityChengdu, Sichuan
Period12/12/1412/12/16

Keywords

  • location-aware services
  • radio-frequency wireless networks
  • user location and tracking
  • wireless LAN

ASJC Scopus subject areas

  • Computer Networks and Communications

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  • Cite this

    Yoo, S., & Kim, H. (2012). Populating virtual access points for localization in sparse wireless networks. In Proceedings - 2012 8th International Conference on Mobile Ad Hoc and Sensor Networks, MSN 2012 (pp. 183-190). [6516483] (Proceedings - 2012 8th International Conference on Mobile Ad Hoc and Sensor Networks, MSN 2012). https://doi.org/10.1109/MSN.2012.32