LOW-PAPR ASYMMETRICALLY CLIPPED OPTICAL OFDM FOR INTENSITY-MODULATION / DIRECT DETECTION SYSTEMS

DHTbased clipped optical orthogonal frequency division multiplexing (ACO-OFDM) system is proposed in this work to yield better results than traditional state-of-art methods. OFDM is growing with immense pace due to its high level advantages but on other side it frequently suffers from PAPR which declines the system performance. In literature high level research is carried on to reduce the impact of PAPR but none can meet the desired requirements. DHT based PAPR reduction with DHT-spreading techniques is proposed in this paper which yields better results than DHT based PAPR reduction without DHT-spreading technique. Effective equalization and better transmission performance are the resultant of proposed work and achieved low PAPR over traditional PAPR reduction schemes.