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http://dx.doi.org/10.7840/kics.2013.38A.12.1021

Wireless LAN Based Indoor Positioning Using Received Signal Fingerprint and Propagation Prediction Model  

Kim, Hyunsu (한국항공대학교 항공전자및정보통신공학부 정보통신공학전공)
Bae, Jimin (한국항공대학교 항공전자및정보통신공학부 정보통신공학전공)
Choi, Jihoon (한국항공대학교 항공전자및정보통신공학부 정보통신공학전공)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.38A, no.12, 2013 , pp. 1021-1029 More about this Journal
Abstract
In this paper, we propose a new indoor location estimation method which combines the fingerprint technique with the propagation prediction model. The wireless LAN (WLAN) access points (APs) deployed indoors are divided into public APs and private APs. While the fingerprint method can be easily used to public APs usually installed in fixed location, it is difficult to apply the fingerprint scheme to private APs whose location can be freely changed. In the proposed approach, the accuracy of user location estimation is improved by simultaneously utilizing public and private APs. Specifically, the fingerprint method is used to the received signals from public APs and the propagation prediction model is employed to the signals from private APs. The performance of the proposed method is compared with that of conventional indoor location estimation schemes through measurements and numerical simulations in WLAN environments.
Keywords
Indoor Positioning; Fingerprint; Propagation Model; Wireless LAN; Received Signal Strength(RSS);
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