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Volume 42 Number 5 Volume 42 Number 6

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Research articles

ScienceAsia 42(2016): 423-426 |doi: 10.2306/scienceasia1513-1874.2016.42.423


A new precoded partial transit sequence method using the discrete cosine transform for peak-to-average power ratio reduction in an orthogonal frequency division multiplexing system


Adnan Haider Yusef Sa'd*, Aeizaal Azman Abd. Wahab, Hisham Haider Yusef Sa'ad

 
ABSTRACT:     Orthogonal frequency division multiplexing (OFDM) is a well-known transmission technique that is adopted in a wide range of standards these days mainly because of its high data bit rate and spectral efficiency. However, OFDM has one major problem called the peak-to-average power ratio (PAPR). This paper will introduce a new method that uses the discrete cosine transform to enhance the PAPR reduction over that achieved in the partial transmit sequence (PTS) approach. The maximum achieved improvement of PAPR reduction compared to the conventional PTS approach is 257% with only 4 iterations and the maximum PAPR reduction achieved in the simulation is 5.7 dB.

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School of Electrical and Electronic Engineering, Universiti Sains Malaysia, 14300 Nibong Tebal, Pulau Pinang, Malaysia

* Corresponding author, E-mail: eng.adnanhaider@gmail.com

Received 25 Oct 2015, Accepted 16 Mar 2017