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Telecommunication Systems

, Volume 65, Issue 2, pp 297–307 | Cite as

A low complexity high efficiency hybrid multiplicative-additive crest factor reduction for OFDM systems

  • Khalid Al-Hussaini
  • Borhanuddin M. Ali
  • Pooria Varahram
  • Shaiful Jahari Hashim
  • Ronan Farrell
Article

Abstract

In this paper, we propose a novel technique to reduce the crest factor (CF) in orthogonal frequency division multiplexing systems. It consists of two inverse fast Fourier transform (IFFT) blocks, the input symbols of the first IFFT are the mapped symbols, whereas the input symbols of the second IFFT are the summations of the absolute value of the real part of the outer signal constellation points and zero symbols. First, the output of the two IFFT blocks is partitioned into four subblocks, which are subsequently used to rearrange the subblocks with padding zeros in a specific manner. Then, a new optimization scheme is introduced, in which only a single two-phase sequence and four iterations need to be applied. Numerical analysis shows that the proposed hybrid technique achieves better CF reduction performance with significantly lower complexity and better bit error rate performance than the existing scrambling (multiplicative) and additive CF techniques.

Keywords

OFDM Crest factor PAPR PTS TR 

Notes

Acknowledgments

This work was supported by Universiti Putra Malaysia under the Prototype Development Research Grant Scheme (PRGS) of the Ministry of Higher Education, Malaysia. (No. 5528700).

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Copyright information

© Springer Science+Business Media New York 2016

Authors and Affiliations

  • Khalid Al-Hussaini
    • 1
  • Borhanuddin M. Ali
    • 2
  • Pooria Varahram
    • 3
  • Shaiful Jahari Hashim
    • 1
  • Ronan Farrell
    • 3
  1. 1.Department of Computer and Communications Systems EngineeringUniversiti Putra MalaysiaUPM SerdangMalaysia
  2. 2.Department of Computer and Communications Systems Engineering,Research Centre of Excellence for Wireless and Photonic Networks (WiPNET)Universiti Putra MalaysiaUPM SerdangMalaysia
  3. 3.CTVR - The Telecommunication Research Centre,Callan Institute, Department of Electronic EngineeringNational University of IrelandKildareIreland

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