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A Geometric Approach for the Indoor Localization System  

Lim, Yu-Jin (University of Suwon)
Park, Jae-Sung (University of Suwon)
Ahn, Sang-Hyun (University of Seoul)
Publication Information
Abstract
Location-based services provide customized information or services according to the user's location. The existing localization schemes for outdoor environment are not applicable to the indoor localization system which requires higher accuracy of location estimation than that of the outdoor localization system. In this paper, we employ the received signal strength(RSS) to approximate the distance between a moving target and a reference point and use the triangulation method to estimate the location of the moving target for the indoor localization system in IEEE 802.15.4 wireless PAN(personal area network). For the indoor localization system, we propose a scheme which selects the best reference points to enhance the localization accuracy and adaptively reflects the changes in propagation environments of a moving target to the distance approximation. Through the implementation of the localization system, we have verified the performance of the proposed scheme in terms of the estimation accuracy.
Keywords
IEEE 802.15.4; Localization; Received signal strength; Triangulation method;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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1 IEEE Standard 802.15.4, "Part 15.4: Wireless medium access control (MAC) and physical layer (PHY) specifications for low-rate wireless personal area networks (WPANs)", 2003
2 최희동, 안와 나즐레이브, 박용완, 최정희, "무선랜 기반의 실내 측위 시스템을 위한 신호 세기 예측 모델에 관한 연구", SK Telecommunications Review, 제18권, 제2호, pp. 248-260, 2008년 4월
3 S. Hara, D. Zhao, K. Yanagihara, J. Taketsugu, K. Fukui, S. Fukunaga, and K. Kitayama, "Propagation characteristics of IEEE 802.15.4 radio signal and their application for location estimation", in Proceedings in IEEE VTC, pp. 97-101, May 2005
4 김진태, 권영미, "RFID와 ZigBee를 이용한 유비쿼터스 u-Health 시스템 구현", 대한전자공학회 논문지, 제43권 제1호, pp. 79-88, 2006년 1월   과학기술학회마을
5 IEEE Standard 802.11, "Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specification: Higher Speed Physical Layer (PHY) Extension in the 2.4GHz Band", 1999
6 http://www.hanback.co.kr/
7 Y. Gwon and R. Jain, "Error characteristics and calibration-free techniques for wireless LAN-based location estimation", Proceedings of ACM MobiWac, pp. 2-9, October 2004
8 C. Suh, J-E Joung, and T-B Ko, "New RF models of the TinyOS simulator for IEEE 802.15.4 standard", Proceedings of IEEE WCNC, pp. 2236-2240, March 2007
9 K. Pahlavan and A. Levesque, "Wireless information networks", New York: Wiley, 1995
10 K. Pahlavan, X. Li, and J. P. Makela, "Indoor geolocation science and technology", IEEE Communications Magazine, vol. 40, pp. 112-118, February 2002
11 김학용, "무선랜 기반 위치 정보 서비스", SK Telecommunications Review, 제16권, 제2호, pp. 188-202, 2006년 4월
12 E. D. Kaplan, "Understanding GPS: Principles and applications", Artech House, 1996
13 이종훈, 김상동, 정우영, 김선미, 박용완, "실시간 실내외 측위 기술 개발 동향 분석", 대한전자공학회 텔레콤, 제22권 제2호, pp. 85-95, 2006년 12월