Voice Delivery using The Visible Light Communication (VLC) Prototype on Line of Sight (LOS) Channels

Visible Light Communication (VLC) is the one of technologies used for 6th generation of telecommunications (6G), because it has a wide frequency spectrum, higher speed and safety. We have conducted an experiment using a prototype to transmit sound. Measurements were made by changing the receiving distance from 30 cm up to 300 cm in increments of 30 cm. We also shift the receiving device, so that it forms an angle 0° up to 30°. This study analyzes the extent of changes in distance and angle to the measurement results. We use a Lux meter measurement of the light intensity received by the receiver. In addition, we also measure the ratio of the sound sent to the received by measuring dB meter. From the results of extensive testing, we got the result that the farther distance, then the sound quality is getting lower. For the 0° angle obtained a propagation distance limit of up to 250 cm, 15° angle 200 cm away and 30° angle up to 150 cm. In addition, we also found that the magnitude of the angle shift decreased the intensity of the received light.