Design and Implementation of Location Detection System of Wireless Access Point

무선 Access Point위치 탐지시스템의 설계 및 구현

  • 구용기 (백석대학교 정보통신학부) ;
  • 홍진근 (백석대학교 정보통신학부) ;
  • 한군희 (백석대학교 정보통신학부) ;
  • 김기홍 (ETRI 부설연구소)
  • Published : 2008.08.31


Recently, the use of wireless fan is increased by the development of wireless communication and convenience. Moreover, it makes an issue of security threat and vulnerability of wireless tan. Therefore, the IEEE established new standard such as 802.11i in 802.11 to supplement security vulnerability of wireless tan. But the security threat that does not solve, still remains. In this paper, we proposed that the location detection algorithm, that is used Kalman-Filter, Lateration and RSSI, and the mechanism that detects security status of AP and unauthorized AP by using beacon-frame of AP in building. Finally, we confirmed performance of proposed algorithm is good in comparison of established algorithm.


Access Point;Wireless;Location Detection;Signal;Kalman-filter;locating algorithm;Wireless Lan


  1. J. Hightower, G. Borriello, "Location systems for ubiquitous computing," IEEE Computer, Vol. 34, No. 8, August 2001, pp. 57-66.
  2. Y.S. Kang, K.H OH and B.H Chang, "Trends of the Evilution of Wireless Lan Security Technologies," 전자 통신동향분석 제18관 제4호 2003년 8월.
  3. ISO/IEC, "Wireless Lan Medium Access Control and Physical Layer Specifications," ISO/IEC 8802-11, ANSI/IEEE Std 802.11, 1999.
  4. G. P. Yost and Panchapakesan,"Improvement in Estimation of Time of Arrival(TOA) from Timing Advance(TA),"IEEE International Conference on Universal Personal Communications, Vol.2, Oct, 1998. pp. 1367-1372.
  5. N. j. Thomas et al.,“A Robust Location Estimator Architecture with Based Kalman Filtering of TOA Data for Wireless Systems,” Spread Spectrum Techniques and Applications, 2000.
  6. 박종태, 이위혁, 조영훈, 나재욱, “유비쿼터스 센서 네트워크에서 위치 측정 기술,” 전자공학회지 제 32 권 7호, 2005. 7, pp.849-862.
  7. L. Zhu and Zhu,“A New Model and its Performance for TDOA Estimation,” IEEE Vehicular Technology Conference 2001, Vol.4 Oct. 2001, pp.2750-2753.
  8. G. Welch and G. bishop,“An Introduction to the Kalman Filter,” UNC-Chapel Hill TR 95-041, 2004.
  9. K. K. C. Yu, et al., “An Adaptive Kalman Filter for Dynamic Harmonic State Estimation and Harmonic Injection Tracking,” IEEE Transactions on Comm. Vol. 20, No. 2, 2005, pp. 1577-1584.