Performance Analysis of On-Off Keying Modulation on Underwater Visible Light Communication

This research evaluates the performance of On-Off Keying (OOK) Modulation on the Underwater Visible Light Communication (UVLC) system. This research analyses the performance of two types of OOK signal formats, Non-Return to Zero (OOK-NRZ) and Return to Zero (OOK-RZ). This signal formats tested on distance, acceptability, Signal to Noise Ratio (SNR), Q-factor and Bit Error Rate (BER) parameters. From extensive simulations that have been done, the results show that the received power decreased 21.7249 % at the maximum distance. In this condition, the UVLC system produced the BER value of the NRZ format 3.28 × smaller than the RZ format. The SNR minimum that produced BER value less than the threshold for NRZ format is 17.925% smaller than the RZ format. Meanwhile, the minimum Q-factor that produced BER value less than 10−3for NRZ modulation is 6 × smaller than the RZ modulation format. From the results, we take the conclusion that the OOK-NRZ better than OOK-RZ on the UVLC system.