Title :
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
fDate :
March 30 2009-April 1 2009
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);
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
DOI :
10.1109/SARNOF.2009.4850292
