Title :
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
fDate :
Nov. 30 2009-Dec. 1 2009
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;
Conference_Titel :
Knowledge Acquisition and Modeling, 2009. KAM '09. Second International Symposium on
Conference_Location :
Wuhan
Print_ISBN :
978-0-7695-3888-4
DOI :
10.1109/KAM.2009.292
