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Study of Various Algorithms on PAPR Reduction in OFDM System

  • R. Raja KumarEmail author
  • R. Pandian
  • P. Indumathi
Conference paper
Part of the Lecture Notes on Data Engineering and Communications Technologies book series (LNDECT, volume 35)

Abstract

Artificial Bee Colony algorithm (ABC) invented in 2005 by Karaboga, mimics the honey bees. In this paper, we use ABC algorithm to reduce one of the deadly problems of OFDM, namely, peak to average power ratio (PAPR). Orthogonal frequency division multiplexing (OFDM) is a type of Multicarrier modulation that reduces fading due to frequency-selective fading channels. However, OFDM has few setbacks. A major demerit of OFDM system is that it has higher PAPR. The high PAPR causes inter-modulation and out-of-band radiation due to power amplifier nonlinearity. Therefore, it is important to decrease PAPR of an OFDM signal. Many methods such as Partial Transmit Sequence (PTS) and Selective Level Mapping (SLM) have been proposed. A new method called artificial bee colony combined with Partial Transmit Sequence (ABC-PTS) algorithm that is suboptimal is proposed in our work to search for right mix of phase factors.

Keywords

OFDM block PAPR SLM PTS PTS-ABC 

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Copyright information

© Springer Nature Switzerland AG 2020

Authors and Affiliations

  1. 1.Sathyabama Institute of Science and Technology (SIST)ChennaiIndia
  2. 2.MIT Campus, Anna UniversityChennaiIndia

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