TY - GEN
T1 - PAPR analysis of DHT-precoded OFDM system for M-QAM
AU - Baig, Imran
AU - Jeoti, Varun
PY - 2010/6/17
Y1 - 2010/6/17
N2 - 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.
AB - 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.
KW - DFT precoder
KW - DHT precoder
KW - HPA
KW - PAPR
UR - http://www.scopus.com/inward/record.url?scp=79952754853&partnerID=8YFLogxK
U2 - 10.1109/ICIAS.2010.5716195
DO - 10.1109/ICIAS.2010.5716195
M3 - Conference contribution
AN - SCOPUS:79952754853
SN - 9781424466238
T3 - 2010 International Conference on Intelligent and Advanced Systems, ICIAS 2010
BT - 2010 International Conference on Intelligent and Advanced Systems, ICIAS 2010
T2 - 2010 International Conference on Intelligent and Advanced Systems, ICIAS 2010
Y2 - 15 June 2010 through 17 June 2010
ER -