Threshold Setting for LOS/NLOS Identification Based on Joint TOA and RSS
1
조회
0
다운로드
0
인용
0
참고문헌
키워드
초록
Non-line-of-sight (NLOS) propagation is one of the challenges in radio positioning. Distinguishing the transmission status of the communication as line-of-sight (LOS) or NLOS is of great importance for the wireless communication systems. This paper focuses on the identification of NLOS based on time-of-arrival (TOA) distance estimates and the received signal strength (RSS) measurements. We set a path loss threshold based on the joint TOA and RSS based NLOS detection method to determine LOS or NLOS. Simulation results show that the proposed method ensures the correct of detection for the LOS condition and can improve the NLOS identification for the weak noise and long distance.
Abstract
Non-line-of-sight (NLOS) propagation is one of the challenges in radio positioning. Distinguishing the transmission status of the communication as line-of-sight (LOS) or NLOS is of great importance for the wireless communication systems. This paper focuses on the identification of NLOS based on time-of-arrival (TOA) distance estimates and the received signal strength (RSS) measurements. We set a path loss threshold based on the joint TOA and RSS based NLOS detection method to determine LOS or NLOS. Simulation results show that the proposed method ensures the correct of detection for the LOS condition and can improve the NLOS identification for the weak noise and long distance.
참고문헌 (6)
- N.J.Thomas, "A robust location estimator architecture with biased kaIman filtering of TOA data for wireless systems", IEEE Int.Symp.Spread Spectrum Techniques and Applications, pp.296~300 (2000)
- M.Najar, "Kalman tracking for rnobile location in NLOS situations", Proc. IEEE Int. Symp. PersonaI. Indoor and Mobile Radio Communications (PIMRC),, pp.2203~2207 (2003)
- W.Kim, "The interior-point method for an optimaI treatment of bias in trilateration location", IEEE Trans Vehicular Technology, 55, pp.1291~1301 (2006)
- R. J. Fontana, "Recent system applications of short-pulse ultra-wide band (uwb) technology", IEEE Trans. Microwave Theory and Technology, 52, pp.2087~2104 (2004)
- W.C.Y.Lee, "Mobile Communication Engineering" (1993), McGraw-Hill
- K.Yu, "Statistical NLOS identification based on AOA, TOA and signal strength", IEEE transactions on vehicular technology, 58(1), pp.235~238 (2009)