ChinaCom2008-Signal Processing for Communications Symposium

Research Article

Extended Iterative Flipping Algorithm for PAPR Reduction in OFDM Systems

  • @INPROCEEDINGS{10.1109/CHINACOM.2008.4685197,
        author={Xiaodong Zhu and Guangxi Zhu and Tao Jiang and Li Yu and Yan Zhang and Pei Lin},
        title={Extended Iterative Flipping Algorithm for PAPR Reduction in OFDM Systems},
        proceedings={ChinaCom2008-Signal Processing for Communications Symposium},
        keywords={Orthogonal frequency division multiplexing (OFDM) partial transmit sequence (PTS) peak-to-average power ratio (PAPR) iterative flipping algorithm},
  • Xiaodong Zhu
    Guangxi Zhu
    Tao Jiang
    Li Yu
    Yan Zhang
    Pei Lin
    Year: 2008
    Extended Iterative Flipping Algorithm for PAPR Reduction in OFDM Systems
    DOI: 10.1109/CHINACOM.2008.4685197
Xiaodong Zhu1,*, Guangxi Zhu1,*, Tao Jiang1,*, Li Yu1, Yan Zhang2,*, Pei Lin1
  • 1: Department of Electronics and Information Engineering, Huazhong University of Science and Technology Wuhan, P. R. China, 430074
  • 2: Simula Research Laboratory Martin Linges v 17, Fornebu, 1325 Lysaker, Norway
*Contact email:,,,


A novel suboptimal technique called extended iterative flipping (E-Flipping) algorithm has been proposed to reduce the peak-to-average power ratio (PAPR) in orthogonal frequency division multiplexing (OFDM) systems. The key idea of the proposed technique is to partition the partial transmit sequences (PTSs) into several groups and then to perform the ``flipping' operation on each group. It has also been shown that the well-known PTS scheme and iterative flipping scheme can be regarded as special cases of the proposed technique. The simulation results show that the proposed technique can achieve remarkable PAPR reduction with a slight complexity increase compared with the original iterative flipping (O-Flipping) algorithm. Moreover, the complexity of the proposed algorithm can be further reduced if the preset threshold is used.