Abstract—The main challenging issue for OFDM Systems is its high PAPR. In this paper a pre-coding based PAPR reduction technique is proposed using Discrete Hartley Transform (DHT). A comparative analysis is done with the proposed method against Walsh Hadamard Transform (WHT) and Discrete Fourier Transform (DFT), and Selective Mapping Method (SLM). Experimental analysis shows that the proposed method out performs when compared with WHT, SLM and Conventional OFDM Systems.

Index Terms—Keywords: OFDM, PAPR, DHT, DFT, WHT, SLM, PAPR

Cite: Ramesh Kristam and B Doss, "A NOVEL APPROACH TO REDUCE PAPR IN OFDM SYSTEM USING DHT PRECODNG FOR M-QAM," International Journal of Electrical and Electronic Engineering & Telecommunications, Vol. 3, No. 3, pp. 68-74, July 2014.