Merged SLM scheme for PAPR reduction of OFDM system with low complexity

Author

Park, Sung-Ho ; Lee, Jong-Yeop ; Hong, Eon-Pyo ; Min, Seung-Wook ; Har, Dong-Soo

Author_Institution

Dept. of Inf. & Commun., Gwangju Inst. of Sci. & Technol., Gwangju

fYear

2009

fDate

March 30 2009-April 1 2009

Firstpage

1

Lastpage

5

Abstract

Merged selected mapping (SLM) scheme is presented for reducing peak-to-average power ratio (PAPR) of an orthogonal frequency division multiplexing (OFDM). The concept of the proposed SLM scheme is based on a combination of advantages of the conventional low complexity SLM schemes by dividing inverse fast Fourier transform (IFFT) into k stage and remaining n-k stage and, then generating additional OFDM signal sequences without performing IFFT to the conventional SLM scheme. This scheme dramatically reduces computational complexity comparing with the conventional SLM schemes under the similar PAPR reduction performance.

Keywords

OFDM modulation; fast Fourier transforms; OFDM system; PAPR reduction; SLM scheme; computational complexity; inverse fast Fourier transform; merged selected mapping scheme; orthogonal frequency division multiplexing; peak-to-average power ratio; signal sequences; Computational complexity; Computer science; Digital multimedia broadcasting; Fast Fourier transforms; Frequency division multiplexing; Nonlinear distortion; OFDM; Partial transmit sequences; Peak to average power ratio; Signal generators; Low computational complexity; orthogonal frequency division multiplexing (OFDM); peak-to-average power ratio (PAPR); selected mapping (SLM);

fLanguage

English

Publisher

ieee

Conference_Titel

Sarnoff Symposium, 2009. SARNOFF '09. IEEE

Conference_Location

Princeton, NJ

Print_ISBN

978-1-4244-3381-0

Electronic_ISBN

978-1-4244-3382-7

Type

conf

DOI

10.1109/SARNOF.2009.4850292

Filename

4850292