PAPR reduction in OFDM systems based on modified PTS algorithm with non-disjoint partition

Author

Chen, Houshou ; Wang, Jyun-Jie ; Tu, Cheng-En ; Chang, Hsiang-Wang

Author_Institution

Dept. of Electr. Eng., Nat. Chung Hsing Univ., Taichung, Taiwan

fYear

2009

fDate

13-16 Sept. 2009

Firstpage

212

Lastpage

216

Abstract

A modified PTS algorithm by partitioning an OFDM block into non-disjoint OFDM sub-blocks is presented in this paper for PAPR reduction of M-QAM OFDM signals. Since a 16-QAM constellation can be written as sum of two QPSK sets, a non-disjoint sub-block partition of the 16-QAM OFDM block is obtained by applying two different disjoint partitions on QPSK OFDM blocks. Compared to a disjoint sub-block partition in conventional PTS, numerical results show that the modified PTS with a non-disjoint partition achieves an improvement of PAPR reduction and BER performance for interleaved, adjacent, and random partitioning schemes.

Keywords

OFDM modulation; error statistics; quadrature amplitude modulation; quadrature phase shift keying; BER performance; M-QAM OFDM signals; OFDM systems; PAPR reduction; QPSK sets; modified PTS algorithm; nondisjoint subblock partition; Bandwidth; Bit error rate; Fourier transforms; Intersymbol interference; OFDM modulation; Partial transmit sequences; Partitioning algorithms; Peak to average power ratio; Quadrature phase shift keying; Robustness; OFDM; PAPR; PTS; partition;

fLanguage

English

Publisher

ieee

Conference_Titel

Personal, Indoor and Mobile Radio Communications, 2009 IEEE 20th International Symposium on

Conference_Location

Tokyo

Print_ISBN

978-1-4244-5122-7

Electronic_ISBN

978-1-4244-5123-4

Type

conf

DOI

10.1109/PIMRC.2009.5450377

Filename

5450377