International Journal of
Physical Sciences

  • Abbreviation: Int. J. Phys. Sci.
  • Language: English
  • ISSN: 1992-1950
  • DOI: 10.5897/IJPS
  • Start Year: 2006
  • Published Articles: 2557


Reducing the peak to average power ratio in OFDM systems

Sabhyata Uppal1* and Sanjay Sharma2
1UIET, Panjab University, Chandigarh, India. 2Thapar University, Patiala, India.  
Email: [email protected]

  •  Accepted: 31 March 2011
  •  Published: 04 June 2011


High  peak  to  average  power  ratio  of  the  transmit  signal  is  a  major  drawback  of  OFDM systems. After defining the PAPR and analyzing its statistical properties, some of the most representative PAPR-reduction techniques available in the literature are reviewed in detail. Several methods have been proposed to reduce the peak power of OFDM signals. In this paper the effectiveness of some recently proposed methods has been evaluated.


Key words: PAPR, OFDM, amplitude clipping, SLM.