New SLM scheme to reduce the PAPR of OFDM signals using a genetic algorithm

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Abstract

Selected mapping (SLM) is a popular peak-to-average power ratio (PAPR) reduction technique suitable for use in orthogonal frequency division multiplexing (OFDM) systems as it achieves good PAPR reduction performance without signal distortion. However, SLM requires a bank of inverse fast Fourier transforms (IFFTs) to produce candidate signals, resulting in high computational complexity. In this paper, we introduce a novel SLM technique based on conversion matrices (CM) and a genetic algorithm (GA) that requires only one IFFT module. Simulation results indicate that the proposed method obtains desirable PAPR reduction performance with low computational complexity.

Original languageEnglish
Pages (from-to)63-66
Number of pages4
JournalICT Express
Volume2
Issue number2
DOIs
StatePublished - 1 Jun 2016

Keywords

  • Conversion matrix
  • Genetic algorithm
  • OFDM
  • PAPR
  • SLM

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