The Performance Research of Reducing PAR in OFDM Systems in Several Modulation Types

Author

Zheng, Zhongqiao ; Zhang, Yanhong

Author_Institution

Sch. of Electron. Inf. & Electr. Eng., Changzhou Inst. of Technol. Changzhou, Changzhou, China

Volume

2

fYear

2009

fDate

Nov. 30 2009-Dec. 1 2009

Firstpage

399

Lastpage

402

Abstract

The Orthogonal Frequency Division Multiplexing (OFDM) is widely used in high speed wireless communication owing to its high utilization rate in frequency spectrum and its availability in anti-multipath, but exorbitant peak-to-average power ratio(PAR) is a big obstacle to utilize it. This paper presents two kinds of common techniques to reduce peak-to-average power ratio, compares their performance in several different modulation types, and puts forward a way of complementary clipping transform. Then a performance simulation of reducing PAR in QPSK is completed.

Keywords

OFDM modulation; quadrature phase shift keying; radio access networks; OFDM systems; PAR; QPSK; anti-multipath; frequency spectrum; high speed wireless communication; modulation types; orthogonal frequency division multiplexing; peak-to-average power ratio; Digital video broadcasting; Discrete Fourier transforms; High power amplifiers; Knowledge acquisition; Knowledge engineering; OFDM modulation; Partial transmit sequences; Peak to average power ratio; Wireless LAN; Wireless communication; Newman sequence; OFDM; PAR; Shapiro-Rudin sequence; amplitude probability distribution; complementary clipping transform;

fLanguage

English

Publisher

ieee

Conference_Titel

Knowledge Acquisition and Modeling, 2009. KAM '09. Second International Symposium on

Conference_Location

Wuhan

Print_ISBN

978-0-7695-3888-4

Type

conf

DOI

10.1109/KAM.2009.292

Filename

5362040