Subblocks interleaving PTS technique with minimum processing time for PAPR reduction in OFDM systems

Khalid Al-Hussaini; Borhanuddin Mohd Ali; Pooria Varahram; Shaiful Jahari Hashim; Ronan Farrell

Subblocks interleaving PTS technique with minimum processing time for PAPR reduction in OFDM systems

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Author(s): Khalid Al-Hussaini¹ ; Borhanuddin Mohd Ali¹ ; Pooria Varahram¹ ; Shaiful Jahari Hashim¹ ; Ronan Farrell²
- Affiliations: 1: Department of Computer and Communications Systems Engineering , Universiti Putra Malaysia , 43400 UPM Serdang, Selangor , Malaysia ;
  2: Department of Electronic Engineering, CTVR – The Telecommunication Research Centre , Callan Institute, National University of Ireland , Maynooth, Co. Kildare , Ireland
Source: Volume 2016, Issue 5, May 2016, p. 134 – 140
DOI: 10.1049/joe.2016.0074 , Online ISSN 2051-3305

This is an open access article published by the IET under the Creative Commons Attribution-NonCommercial-NoDerivs License (http://creativecommons.org/licenses/by-nc-nd/3.0/)

Received 24/03/2016, Accepted 15/04/2016, Revised 13/04/2016, Published 21/04/2016

This study presents subblocks interleaving partial transmit sequence (SBI-PTS) technique having low complexity for reducing the peak-to-average power ratio in orthogonal frequency division multiplexing systems. In this technique, a new subblocks interleaver is proposed, in which each subblock is interleaved with the others. Moreover, a new optimisation scheme is introduced, in which the number of iterations is made to be equal to the number of subblocks only which results in reduced processing time and less computation that leads to reduced complexity. Simulation results demonstrate that the new technique can effectively reduce the complexity by up to 99.95% (for subblocks number M = 16, inverse fast Fourier transform size N = 256) compared with the conventional PTS and new existing PTS techniques and yield good bit error rate performance. The other salient feature of this scheme is that it does not require side information and thus it offers increased transmission efficiency.

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Subblocks interleaving PTS technique with minimum processing time for PAPR reduction in OFDM systems

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