Mobile Localization Based on Scattering Path Identification

Abstract

Aiming at the problem of mobile localization in nonline-of-sight (NLOS) environments, in this paper a new mobile location method based on scattering path identification is proposed. First of all, an improved single scattering path identification algorithm which is used to identify whether two scattering paths is from the same scatterer based on line-of-possible-mobile-device (LPMD) line is proposed, then the scattering paths from the same scatterer at different BSs are grouped and the scatterer is located by these paths and BSs, at last, the located scatterers are utilized as virtual base stations to take part in the localization of mobile. Simulation results show that the proposed method can effectively improve the localization accuracy of mobile station, which is close to the accuracy acquired in line-of-sight (LOS) environments.