Designs of a free-space white-LED mass-storage transceiver for SD-card file transfer. - Lih Chieh Png; Nhat Le Minh; Liangquan Chen; Kiat Seng Yeo (GLOBECOM Workshops, 2012)

An Arduino-based indoor positioning system (IPS) using visible light communication and ultrasound. - Lih Chieh Png; Liangquan Chen; Song Liu; Wei Kuan Peh (ICCE-TW, 2014)