ASK-based spatial multiplexing RGB scheme using symbol-dependent self-interference for detection

Stefano Pergoloni, Andrea Petroni, Thai-Chien Bui, Gaetano Scarano, Roberto Cusani, Mauro Biagi
2017 Optics Express  
We propose a vsible light communication scheme utilizing red, green and blue lightemitting diodes (LEDs) and three color-tuned photodiodes. Amplitude shift keying modulation is considered, and its effect on light emission in terms of flickering, dimming, and color rendering is discussed. The presence of interference at each photodiode generated by the other two colors is used to improve detection since interference is symbol-dependent. Moreover, the capability of the photodiodes to follow the
more » ... des to follow the LEDs speed is considered by analyzing the possibility of equalizing the received signal, and also self-interference mitigation is proposed. The system performance is evaluated both with computer simulations and tests on an Arduino board implementation.
doi:10.1364/oe.25.015028 pmid:28788937 fatcat:67jwm44ejjeyrckzlsrcqgzlwa