%0 Conference Paper
%A Baig, I.
%A Jeoti, V.
%D 2010
%F scholars:940
%K DHT precoder; Discrete Hartley transforms; High power amplifier; HPA; OFDM systems; PAPR; Peak to average power ratio; Precoders; Selected mapping; Simulation result; Walsh-Hadamard transform, Amplitude modulation; Analog to digital conversion; Computer simulation; Frequency allocation; Orthogonal functions; Power amplifiers; Quadrature amplitude modulation; Telecommunication systems, Orthogonal frequency division multiplexing
%R 10.1109/ICIAS.2010.5716195
%T PAPR analysis of DHT-precoded OFDM system for M-QAM
%U https://khub.utp.edu.my/scholars/940/
%X High Peak to Average Power Ratio (PAPR) is one of the major drawbacks in Orthogonal Frequency Division Multiplexing (OFDM). The High PAPR increases the complexity of Analogue to Digital (A/D) and Digital to Analogue (D/A) convertors and also reduces the efficiency of RF High Power Amplifier (HPA). In this paper we present an analysis of Discrete Hartley Transform (DHT) precoded OFDM system using M-QAM (where M=16, 32, 64, 256). We compare the computer simulation results of DHT precoded OFDM system with DFT precoded OFDM system, Walsh Hadamard Transform (WHT) precoded OFDM system, Selected Mapping (SLM) based OFDM system and OFDM conventional. Simulation results show that the PAPR of DHT precoded OFDM system is lower than WHT precoded OFDM system, SLM-OFDM system and OFDM conventional. We also concluded in this paper that DFT precoded OFDM system has zero PAPR.
%Z cited By 43; Conference of 2010 International Conference on Intelligent and Advanced Systems, ICIAS 2010 ; Conference Date: 15 June 2010 Through 17 June 2010; Conference Code:84196