Title :
Modification of dummy sub-carriers method to reduce PAPR in OFDM system
Author :
Juwono, Filbert H. ; Gunawan, Dadang
Author_Institution :
Dept. of Electr. Eng., Universitas Indonesia, Indonesia
Abstract :
Orthogonal Frequency Division Multiplexing (OFDM) has been employed in many wireless standards. However, one of the drawbacks of OFDM is high peak-to-average power ratio (PAPR). We propose modification of dummy sub-carriers to reduce the PAPR. We use random dummy signal and multiplication factor to yield better PAPR. The PAPR reduction of about 4 dB at probability of 102 is achieved by using 2 dummy sub-carriers.
Keywords :
OFDM modulation; probability; radiocommunication; OFDM system; PAPR reduction; dummy subcarrier method; multiplication factor; orthogonal frequency division multiplexing system; peak-to-average power ratio reduction; probability; random dummy signal; wireless communication; wireless standard; OFDM; PAPR; dummy sub-carriers;
Conference_Titel :
Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON), 2011 8th International Conference on
Conference_Location :
Khon Kaen
Print_ISBN :
978-1-4577-0425-3
DOI :
10.1109/ECTICON.2011.5947842
