Title :
Interleaved subcarrier allocation for DFT-spread OFDM to reduce PAPR
Author :
Yuan Fang ; Li Tao ; Nan Chi
Author_Institution :
Dept. of Commun. Sci. & Eng., Fudan Univ., Shanghai, China
Abstract :
Discrete-Fourier-transform spread orthogonal frequency-division multiplexing (DFT-S-OFDM) draws increasing attention by its prominent advantage in low peak-to-average power ratio (PAPR). DFT-S-OFDM originate from the single carrier frequency division multiple access (SC-FDMA) which is the uplink multiple access scheme for 3GPP LTE. Although DFT-S-OFDM has been introduced to optical communication, detailed discussion on this scheme is still necessary. In this paper, we study the PAPR performance of DFT-S-OFDM in optical transmission system and compare the performance of different subcarrier allocation method. Meanwhile, we propose to utilize interleaved subcarrier allocation and demonstrate that obvious improvement in input power range and BER at high input power will be achieved.
Keywords :
Long Term Evolution; OFDM modulation; discrete Fourier transforms; error statistics; subcarrier multiplexing; 3GPP LTE; BER; DFT-spread OFDM; PAPR; discrete-Fourier-transform spread orthogonal frequency-division multiplexing; input power range; interleaved subcarrier allocation; optical communication; optical transmission system; peak-to-average power ratio; single carrier frequency division multiple access; Discrete Fourier transforms; Optical fibers; Optical transmitters; Peak to average power ratio; Resource management;
Conference_Titel :
Opto-Electronics and Communications Conference (OECC), 2012 17th
Conference_Location :
Busan
Print_ISBN :
978-1-4673-0976-9
Electronic_ISBN :
2166-8884
DOI :
10.1109/OECC.2012.6276716