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Electronics and Telecommunications Research Institute (한국전자통신연구원)
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New low-complexity segmentation scheme for the partial transmit sequence technique for reducing the high PAPR value in OFDM systems

  • Jawhar, Yasir Amer (Department of Communication Engineering, University Tun Hussein Onn Malaysia) ;
  • Ramli, Khairun Nidzam (Department of Communication Engineering, University Tun Hussein Onn Malaysia) ;
  • Taher, Montadar Abas (Department of Communication Engineering, University of Diyala) ;
  • Shah, Nor Shahida Mohd (Faculty of Engineering Technology, University Tun Hussein Onn Malaysia) ;
  • Audah, Lukman (Department of Communication Engineering, University Tun Hussein Onn Malaysia) ;
  • Ahmed, Mustafa Sami (Department of Communication Engineering, University Tun Hussein Onn Malaysia) ;
  • Abbas, Thamer (Faculty of Information and Communication Technology)
  • Received : 2018.02.01
  • Accepted : 2018.06.11
  • Published : 2018.12.06
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Abstract

Orthogonal frequency division multiplexing (OFDM) has been the overwhelmingly prevalent choice for high-data-rate systems due to its superior advantages compared with other modulation techniques. In contrast, a high peak-to-average-power ratio (PAPR) is considered the fundamental obstacle in OFDM systems since it drives the system to suffer from in-band distortion and out-of-band radiation. The partial transmit sequence (PTS) technique is viewed as one of several strategies that have been suggested to diminish the high PAPR trend. The PTS relies upon dividing an input data sequence into a number of subblocks. Hence, three common types of the subblock segmentation methods have been adopted - interleaving (IL-PTS), adjacent (Ad-PTS), and pseudorandom (PR-PTS). In this study, a new type of subblock division scheme is proposed to improve the PAPR reduction capacity with a low computational complexity. The results indicate that the proposed scheme can enhance the PAPR reduction performance better than the IL-PTS and Ad-PTS schemes. Additionally, the computational complexity of the proposed scheme is lower than that of the PR-PTS and Ad-PTS schemes.

Keywords

References

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