Peak-to-Average Power Ratio Reduction of OFDM Signals Using PTS Scheme With Low Computational Complexity

Author

Hou, Jun ; Ge, Jianhua ; Li, Jing

Author_Institution

State Key Lab. of Integrated Services Net works, Xidian Univ., Xi´´an, China

Volume

57

Issue

1

fYear

2011

fDate

3/1/2011 12:00:00 AM

Firstpage

143

Lastpage

148

Abstract

Partial transmit sequences (PTS) is one of the most attractive schemes to reduce the peak-to-average power ratio (PAPR) in orthogonal frequency division multiplexing (OFDM) systems. However, the conventional PTS scheme requires an exhaustive searching over all combinations of allowed phase factors. Consequently, the computational complexity increases exponentially with the number of the subblocks. By utilizing the correlation among the candidate signals generated in PTS, a novel scheme is proposed to decrease the computational complexity. The performance analysis shows that the proposed scheme can reduce the computational complexity dramatically while achieving the same PAPR reduction compared to the conventional PTS scheme.

Keywords

OFDM modulation; computational complexity; OFDM signals; PAPR reduction; PTS scheme; computational complexity; orthogonal frequency division multiplexing; partial transmit sequences; peak-to-average power ratio reduction; performance analysis; Computational complexity; orthogonal frequency division multiplexing (OFDM); partial transmit sequences (PTS); peak-to-average power ratio (PAPR);

fLanguage

English

Journal_Title

Broadcasting, IEEE Transactions on

Publisher

ieee

ISSN

0018-9316

Type

jour

DOI

10.1109/TBC.2010.2079691

Filename

5594655