Analysis of Modulation Performance of Underwater Visible Light Communication with Variable Wavelength

摘要

This paper evaluates the performance of Underwater Visible Light Communication (UVLC) with various modulation and wavelength. The first scenario will analyze the Signalto-Noise Ratio (SNR) of the UVLC with 450, 480, and 500 nm wavelength. The second scenario will compare the performance of Bit Error Rate (BER) with various modulation from Onoff Keying No-Return Zero (OOK-NRZ), On-Off Keying Return Zero (OOK-RZ), 8 Pulse Position Modulation (8-PPM), and 8 Pulse Amplitude Modulation (8-PAM). Same as the first scenario the comparison of BER use 450, 480, and 500 nm wavelength. From the simulation of the first scenario, the used of 500 nm wavelength get the result 13.1147, which is the best result of SNR in this simulation. Meanwhile, in the second scenario, the combination of 8-PPM with 500 nm wavelength get the result 1.8922 $imes 10^{-10}$, which is the best result and the value is smaller from Optical Wireless Communication (OWC) BER which is $10^{-9}$