Performance Analysis of Indoor Positioning System Using Visible Light Based on Two-LEDs and Image Sensor for Different Handhold Situation of Mobile Phone

In this work, an effective smartphone image sensor and double LED luminaires based visible light positioning method has proposed. Therefore, it provides higher positioning accuracy via the design of a flicker-free multiple frequency shift keying line coding modulation technique. We also analyze the performance of our system for different handhold situations of a smartphone during the experiment to utilize the rolling shutter mechanism of the complementary metal-oxide-semiconductor image sensor. Experimental results from the proposed system can provide accuracy for the flat situation of the mobile phone 3.25 cm and 5.1 cm for the to-degree tilt laying situation of mobile phone.