LI-FI based Peak to Average Power Ratio Reduction in HACO-OFDM System

At present, LASERS has gained one of the most powerful inventions in the world, and has applications in the fields ranging from information processing to telecommunications, medical, consumer electronics, law enforcement, military weapons systems and engineering. Therefore, the optical connectivity in free space includes the utilization of LED or infrared laser. The “Hybrid Asymmetrically Clipped Optical Orthogonal Frequency division Multiplexing” (HACOOFDM) achieves a better spectral efficiency relative to an “Asymmetrically Clipped Optical OFDM” (ACOOFDM) while retaining the advantages of the techniques used. The proposed HACO-OFDM has superimposed with the COLEA software which is the tool for the speech analysis thereby tests the given voice signal using Fourier Transform and Linear Predictive coding techniques. HACO-OFDM hasn’t directly invoked the optical output hence Light Fidelity is used here to show the advancements in technology. In this paper, the proposed HACO-OFDM technique (Both SLM and Clipping methods) analysis the accurate information by reducing PAPR with respect to Bit Error Rate and Signal to Noise Ratio compare to Existing ACO-OFDM (SPR) and thus results in low bit error rate of $10^{-7}$ in Communication thereby increases the efficiency of system.