Title :
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
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;
Conference_Titel :
Communications (MICC), 2009 IEEE 9th Malaysia International Conference on
Conference_Location :
Kuala Lumpur
Print_ISBN :
978-1-4244-5531-7
DOI :
10.1109/MICC.2009.5431493
