Peak-to-average power ratio reduction in OFDM systems using smoothing technique

Author

Al-Azzo, Wisam F. ; Ali, Borhanuddin Mohd ; Khatun, Sabira ; Noordin, Nor K. ; Bilfagih, Syed M.

Author_Institution

Dept. of Comput. & Commun. Syst. Eng., Univ. Putra Malaysia, Serdang, Malaysia

fYear

2009

fDate

15-17 Dec. 2009

Firstpage

11

Lastpage

14

Abstract

This paper presents a new peak-to-average power ratio (PAPR) reduction technique by smoothing the power components of OFDM signals. The smoothing technique only adds a simple process to the existing OFDM signal processing. Also, there is no need to send side information to the receiver for signal recovery. Smoothed OFDM system with 64 subcarrier and 16-QAM modulation achieved reduction in PAPR in the range of 0.5 to 2.5 dB, with out-of-band shoulder lying less than -15 dB compared to in-band level.

Keywords

OFDM modulation; quadrature amplitude modulation; signal processing; smoothing methods; OFDM signal processing; OFDM signals; OFDM systems; PAPR reduction technique; QAM modulation; peak-to-average power ratio reduction; power components; signal recovery; smoothed OFDM system; smoothing technique; Distortion; OFDM modulation; Partial transmit sequences; Peak to average power ratio; Power engineering and energy; Power engineering computing; Signal processing; Smoothing methods; Systems engineering and theory; Transmitters; OFDM; PAPR reduction; complementary cumulative distribution function (CCDF); peak-to-average power ratio (PAPR); smoothing technique;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications (MICC), 2009 IEEE 9th Malaysia International Conference on

Conference_Location

Kuala Lumpur

Print_ISBN

978-1-4244-5531-7

Type

conf

DOI

10.1109/MICC.2009.5431493

Filename

5431493