An Improved Clipping Scheme Based on TR for PAPR Reduction in OFDM Systems

Author

Wu, Chengyong ; Lu, You ; Liu, Guanghui

Author_Institution

Sch. of Electron. Eng., Univ. of Electron. Sci. & Technol. of China, Chengdu, China

fYear

2012

fDate

27-29 Oct. 2012

Firstpage

598

Lastpage

601

Abstract

Tone reservation (TR) is one of the most attractive techniques to reduce peak-to-average power ratio (PAPR) in orthogonal frequency division multiplexing (OFDM) systems. In this paper, an improved clipping and filtering method based on TR is proposed. The new approach combines ordinary clipping and deep clipping while adjusting the threshold and the depth factor of clipping. Compared with the conventional clipping and filtering algorithm based on TR, the proposed scheme offers better PAPR reduction performance without increasing the computational complexity.

Keywords

OFDM modulation; filtering theory; OFDM system; PAPR reduction; clipping scheme; depth factor; filtering method; orthogonal frequency division multiplexing; peak-to-average power ratio; threshold factor; tone reservation; Computational complexity; Digital video broadcasting; Filtering; Noise; Peak to average power ratio; Time domain analysis; OFDM; clipping and filtering; peak-to-average power ratio; tone reservation;

fLanguage

English

Publisher

ieee

Conference_Titel

Computer and Information Technology (CIT), 2012 IEEE 12th International Conference on

Conference_Location

Chengdu

Print_ISBN

978-1-4673-4873-7

Type

conf

DOI

10.1109/CIT.2012.128

Filename

6391965