A Study on the SNR and SINR Performance of a LiFi Transmission System: From the Perspective of a Smart Classroom in Bangladesh

Light Fidelity (LiFi) has been developed to tackle the spectrum crisis raised due to the immerse enhancement of the communication technology since it can utilize higher spectrum, i.e., above 300 THz. The objective of the work is to analyze signal-to-noise ratio (SNR) and signal-to-noise-plus-interference ratio (SINR) in the context of a smart classroom of Bangladesh. The work first analyzed the SNR deploying a single LiFi access point (AP). Afterward, it analyzed SNR and SINR deploying 2 LiFi AP. The work derived that, 2 LiFi AP provides better SNR performance in the context of the considered room dimension compared to the single AP scenario. Moreover, the research found that increasing the separation distance between the 2 LiFi APs assures better SINR performance, especially at the cell edge.