Signal processing scheme for error control in visible light communication data transmission system

Abstract

We developed wireless visible light simplex data transmission channel and error correction algorithm for the reciever. The system was design specially for using modern smartphone device as a receiver and a conventional domestic LED illuminator as transmitter. We calculated highest probable data transfer speed in our communication channel, fabricated the transmitter modulator and developed the client application for an android smartphone equipped with stock camera module, perform a series of data speed measurements and conducted the analysis of both analog and digital signals. The system allowed to transmit data with rates up to 8 kbps on distance up to 1.5 meters.