SNR investigation for Visible Light Communication for Hospitals

This paper examines SNR characteristics of a hazardless alternative for data transfer using Visible Light communications (VLC) for radio frequencies (RF) restricted indoors areas such as aircrafts and health care systems. This communication system will be used for patients’ health monitoring in addition to providing the users with high data rate for multimedia contents applications. Since RF can be hazardous for patient’s health and could potentially damage the expensive instruments of the hospital, Visible light emerges victorious in communication battle. Room illumination and lux distribution simulations are created using Dialux evo and optical power distribution and power calculations are simulated in MATLAB. Further, the effects of three major factors in the wireless optical communication including Distance, Modulation and Data Rate are analyzed based on the SNR and BER of the communication channel.