LOS-NLOS identification algorithm for indoor visible light positioning system

摘要

With the development of Visible light communication (VLC) and the requirement of position based service, VLC based Indoor Positioning System (VLC IPS) has been a popular research area. But there is an important impact of multipath on positioning accuracy (1m positioning error). In this paper, the multipath is characterized as normalization Signal to Interference plus Noise Ratio (SINR). Then the LOS-NLOS identification algorithm is proposed which can calculate the SINR and eliminate the effect of multipath. According to simulation result, the positioning accuracy could achieve a 7 cm and 20 cm in the corner area.