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

fYear

2010

fDate

14-19 March 2010

Firstpage

3290

Lastpage

3293

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);

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics Speech and Signal Processing (ICASSP), 2010 IEEE International Conference on

Conference_Location

Dallas, TX

ISSN

1520-6149

Print_ISBN

978-1-4244-4295-9

Electronic_ISBN

1520-6149

Type

conf

DOI

10.1109/ICASSP.2010.5496031

Filename

5496031