Papr reduction using a combination between precoding andnon-linear companding techniques foraco-ofdm-based vlc systems

Abstract

Peak-To-Average power ratio reduction techniques for visible light communication broadcasting systems are designed, simulated, and evaluated in this work. The proposed techniques are based on merging non-linear companding techniques with precoding techniques. This work aims to nominate an optimum novel scheme combining the low peak-To-Average power ratio with the acceptable bit error rate performance. Asymmetrically clipped optical orthogonal frequency division multiplexing with the low peak-To-Average power ratio performance becomes more attractive to real-life visible light communication applications due to non-linearity elimination. The proposed schemes are compared and an optimum choice is nominated. Comparing the presented work and related literature reviews for peak-To-Average power ratio reduction techniques are held to ensure the proposed schemes validity and effectiveness.