PAPR reduction in OFDM systems

Author

Pradhan, P.K. ; Yadav, S.S. ; Patra, S.K.

Author_Institution

Dept. of Electron. & Commun. Eng., Nat. Inst. of Technol., Rourkela, India

fYear

2014

fDate

11-13 Dec. 2014

Firstpage

1

Lastpage

5

Abstract

In a communication system, operation of the transmitter power amplifier is limited to linear range. Input signal with an amplitude more than the transmitter power amplifier linear range results in signal distortion. Hence, the input signal to the transmitter should be with low peak to average power ratio. This paper presents a new method of reducing the peak to average power ratio in OFDM system. The proposed method is based on DCT aided successive addition and subtraction of OFDM symbols inside the single OFDM frame. Performance of the proposed method is evaluated and found to be superior to PTS, SLM techniques.

Keywords

OFDM modulation; discrete cosine transforms; performance evaluation; DCT; OFDM system; PAPR reduction; PTS technique; SLM technique; communication system; peak to average power ratio; performance evaluation; signal distortion; transmitter power amplifier; Communication systems; Discrete cosine transforms; Modulation; Partial transmit sequences; Peak to average power ratio; Transmitters; DCT; OFDM; PAPR; PTS; SLM;

fLanguage

English

Publisher

ieee

Conference_Titel

India Conference (INDICON), 2014 Annual IEEE

Conference_Location

Pune

Print_ISBN

978-1-4799-5362-2

Type

conf

DOI

10.1109/INDICON.2014.7030615

Filename

7030615