LED 조명은 자유 공간으로 복사되었고, VLC 수신기는 LED 어레이로부터 가시광 신호를 수신하기 위해 약 2미터 거리에 설치되었다.
The LED light was radiated into free space and a VLC receiver was installed at a distance of about two meters to receive the visible light signal from the LED array.