PAPR reduction iterative algorithm via adding weights to amplitudes and phases of OFDM subcarriers

  • Yao Rugui
  • , Wang Yongsheng
  • , Kong Weidong
  • , Xu Juan

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

In this paper, we propose a novel and effective Peak-to-Average Power Ratio (PAPR) reduction algorithm for Orthogonal Frequency Division Multiplexing (OFDM) signals that uses a group of appropriate weights in both amplitude and phases fixed on subcarriers in the frequency domain. Also we deduce a iterative formula to compute the weights. Compared with Partial Transmit Sequence (PTS) and Selected Mapping (SLM) algorithms, the proposed algorithm shows its better performance on PAPR reduction. Bit error rate (BER) analysis indicates that the amplitude of the weights has a great impact on the BER performance of the system. Appropriate restriction on the amplitude can get good performance in both PAPR and BER. Simulation results show that the proposed algorithm is better than PTS and SLM algorithm in PAPR reduction performance, while satisfying BER performance, for example, PAPR reduction can be up to 2.5dB decrease when dividing the subcarriers into 4 subgroups.

Original languageEnglish
Title of host publication2007 International Conference on Wireless Communications, Networking and Mobile Computing, WiCOM 2007
Pages145-148
Number of pages4
DOIs
StatePublished - 2007
Event2007 International Conference on Wireless Communications, Networking and Mobile Computing, WiCOM 2007 - Shanghai, China
Duration: 21 Sep 200725 Sep 2007

Publication series

Name2007 International Conference on Wireless Communications, Networking and Mobile Computing, WiCOM 2007

Conference

Conference2007 International Conference on Wireless Communications, Networking and Mobile Computing, WiCOM 2007
Country/TerritoryChina
CityShanghai
Period21/09/0725/09/07

Keywords

  • Iterative algorithm
  • OFDM
  • PAPR reduction
  • Subcarrier
  • Weights

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