A unilateral 3D indoor positioning system employing optical camera communications

This article investigates the use of a visible light positioning system in an indoor environment to provide three dimensional (3D) high-accuracy solution. The proposed leveraged single light-emitting diode and image sensor at transmitter receiver (Rx) respectively. can retrieve 3D coordinate Rx using combination angle arrival received signal strength (RSS). To mitigate error induced by lens Rx, novel method is experimentally tested. authors show that, outperforms previously reported RSS under all circumstances it immune varying exposure times within standard range 250 µs 4 ms. demonstrate that algorithm achieve root mean squared 7.56 cm.