The Fourth Generation Wireless Communications and Beyond

Research Article

PAPR Reduction for Random Interleaved Uplink OFDMA System

  • @INPROCEEDINGS{10.1109/CHINACOM.2008.4685069,
        author={Xu He and Yue Xiao and Shaoqian Li},
        title={PAPR Reduction for Random Interleaved Uplink OFDMA System},
        proceedings={The Fourth Generation Wireless Communications and Beyond},
        publisher={IEEE},
        proceedings_a={CHINACOM2008-INDUSTRIAL},
        year={2008},
        month={11},
        keywords={OFDMA PAPR Clipping},
        doi={10.1109/CHINACOM.2008.4685069}
    }
    
  • Xu He
    Yue Xiao
    Shaoqian Li
    Year: 2008
    PAPR Reduction for Random Interleaved Uplink OFDMA System
    CHINACOM2008-INDUSTRIAL
    IEEE
    DOI: 10.1109/CHINACOM.2008.4685069
Xu He1,*, Yue Xiao1,*, Shaoqian Li1,*
  • 1: National Key Lab. of Communication University of Electronic Science and Technology of China Chengdu, China
*Contact email: hexu@uestc.edu.cn, xiaoyue@uestc.edu.cn, lsq@uestc.edu.cn

Abstract

To overcome the PAPR problem of conventional Orthogonal frequency-division multiplexing (OFDM) system, a significant amount of methods have been proposed. However, there are few literatures considering the PAPR reduction for uplink orthogonal frequency division multiple access (OFDMA) system. In this paper, we focus on the PAPR reduction for random interleaved uplink OFDMA system. Firstly, the conventional clipping and filtering technique is investigated. Then a simplified system is proposed. Finally, an interference cancellation method is proposed so as to mitigate the BER performance degradation caused by the proposed system. Simulation results show that the proposed technique can make a better tradeoff between PAPR reduction and computational complexity.