WLAN Differential Indoor Positioning Using Reference Points

Jae Woong Chun, Jaywon Chey, Jang Gyu Lee, Gyu-In Jee and Wuk Kim

Abstract:	As the interest of location based-service and ubiquitous environment is proliferated, the development of technologies to determine mobile station location indoors and outdoors is basically demanded for providing various services based on user’s location. Representatively, GPS(Global Positioning System) is the most well-known positioning system, but actually isn’t an adequate system indoors because of the weakness of positioning signals, NLOS(Non-line of sight) and multipath. Therefore, recently in order to replace it, new technologies using WLAN have been presented. In the thesis, as estimating NLOS errors between mobile station and access points using reference points, a triangulation positioning method based on signal strength will be proposed. Also, indoor positioning experiment results will be shown.
Published in:	Proceedings of the 2005 National Technical Meeting of The Institute of Navigation January 24 - 26, 2005 The Catamaran Resort Hotel San Diego, CA
Pages:	1113 - 1117
Cite this article:	Chun, Jae Woong, Chey, Jaywon, Lee, Jang Gyu, Jee, Gyu-In, Kim, Wuk, "WLAN Differential Indoor Positioning Using Reference Points," Proceedings of the 2005 National Technical Meeting of The Institute of Navigation, San Diego, CA, January 2005, pp. 1113-1117.
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