International Journal of Science and Research (IJSR)

International Journal of Science and Research (IJSR)
Call for Papers | Fully Refereed | Open Access | Double Blind Peer Reviewed

ISSN: 2319-7064


Downloads: 115

Research Paper | Electronics & Communication Engineering | India | Volume 3 Issue 7, July 2014


Efficient PAPR Reduction in OFDM Systems Based on a Companding Technique

Rikhee Ram [3] | Aashish Hiradhar [6]


Abstract: Orthogonal Frequency Division Multiplexing (OFDM) has become the most widely adopted technology in wireless communication systems. OFDM is limited mainly by its high Peak-to-Average Power Ratio (PAPR). A uniformly distributed nonlinear companding scheme efficiently reduces PAPR with a low Bit Error Rate (BER). However, the uniformly distributed companding scheme cannot perform variably to satisfy the different performance requirements for the systems. Therefore, this work proposes a novel scheme that transforms the OFDM signals into a trapezium distribution. The uniformly distributed companding scheme is a special case of the proposed scheme. The general formulas of the proposed scheme are derived and the trade-off between PAPR reduction and BER performance is achieved by setting the value of a parameter. Then, the simulation results show the PAPR reduction and the BER over the AWGN and multipath channels, indicating that the proposed scheme provides a favorable trade-off between the PAPR reduction and the BER.


Keywords: Companding, OFDM, PAPR


Edition: Volume 3 Issue 7, July 2014,


Pages: 882 - 886


How to Download this Article?

You Need to Register Your Email Address Before You Can Download the Article PDF


How to Cite this Article?

Rikhee Ram, Aashish Hiradhar, "Efficient PAPR Reduction in OFDM Systems Based on a Companding Technique", International Journal of Science and Research (IJSR), Volume 3 Issue 7, July 2014, pp. 882-886, https://www.ijsr.net/get_abstract.php?paper_id=2014945

Similar Articles with Keyword 'OFDM'

Downloads: 103

Review Papers, Electronics & Communication Engineering, India, Volume 4 Issue 2, February 2015

Pages: 1975 - 1977

Power Reduction Using ACE and NN Schemes

Silpa S Kishore [2]

Share this Article

Downloads: 103

M.Tech / M.E / PhD Thesis, Electronics & Communication Engineering, India, Volume 4 Issue 9, September 2015

Pages: 1272 - 1275

Doppler Frequency Effect and BER Performance of FFT Based OFDM System

C Sreevidya | G Sunil [2]

Share this Article
Top