Title :
Optimizing free subcarrier index to minimize peak-to-average power ratio foR OFDM systems
Author :
Liu, Qijia ; Baxley, Robert J. ; Ma, Xiaoli ; Zhou, G. Tong
Author_Institution :
Sch. of Electr. & Comput. Eng., Georgia Tech, Atlanta, GA, USA
Abstract :
Optimizing the indices and values of free subcarriers (FSs) can significantly reduce the peak-to-average power ratio (PAR) of orthogonal frequency division multiplexing (OFDM) signals. In this paper, a numerical method is proposed to analyze the average PAR reduction performance of the FS optimization method. Different PAR reduction performance is revealed for different FS index assignments and the optimal single FS index can be determined by the proposed approach.
Keywords :
OFDM modulation; optimisation; radio networks; FS optimization; OFDM systems; average PAR reduction; free subcarrier index; orthogonal frequency division multiplexing; peak-to-average power ratio; Communication standards; Decoding; Dynamic range; Frequency selective surfaces; OFDM; Optimization methods; Peak to average power ratio; Performance analysis; Time domain analysis; Transmitters; Free subcarrier optimization; orthogonal frequency division multiplexing (OFDM); peak-to-average power ratio (PAR);
Conference_Titel :
Acoustics Speech and Signal Processing (ICASSP), 2010 IEEE International Conference on
Conference_Location :
Dallas, TX
Print_ISBN :
978-1-4244-4295-9
Electronic_ISBN :
1520-6149
DOI :
10.1109/ICASSP.2010.5496031
