PAPR reduction in OFDM transmission using Hadamard transform

Author

Park, Myonghee ; Jun, Heeyoung ; Cho, Jaehee ; Cho, Namslnin ; Hong, Daesik ; Kang, Changeun

Author_Institution

Dept. of Electr. & Comput. Eng., Yonsei Univ., Seoul, South Korea

Volume

1

fYear

2000

fDate

2000

Firstpage

430

Abstract

An OFDM signal with large peak-to-average power ratio (PAPR) can cause power degradation (inband distortion) and spectral spreading (out-of-band radiation) by being clipped passing through a power amplifier. The PAPR characteristics are analyzed in two different aspects. From the foundation of the analysis, we propose Hadamard transform, which is ascribed to the relationship between the autocorrelation function and PAPR. Extensive computer simulations show that Hadamard transform is an effective technique to reduce PAPR

Keywords

Hadamard transforms; OFDM modulation; correlation methods; electric distortion; fast Fourier transforms; inverse problems; power amplifiers; quadrature amplitude modulation; 16QAM; Hadamard transform; IFFT; OFDM signal; OFDM transmission; PAPR characteristics; PAPR reduction; autocorrelation function; computer simulations; inband distortion; inverse fast Fourier transform; multicarrier modulation; orthogonal frequency division multiplexing; out-of-band radiation; peak-to-average power ratio; power amplifier; power degradation; spectral spreading; Bandwidth; Bit error rate; Block codes; Computer simulation; Degradation; Fading; Filtering; Nonlinear distortion; OFDM modulation; Peak to average power ratio;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, 2000. ICC 2000. 2000 IEEE International Conference on

Conference_Location

New Orleans, LA

Print_ISBN

0-7803-6283-7

Type

conf

DOI

10.1109/ICC.2000.853355

Filename

853355