Home > Published Issues > 2016 > Volume 11, No. 11, November 2016 >

PAPR Reduction for OFDM/OQAM Signals Using Offset-Symbols Joint SLM Method

Yujie Xia and Junjie Zhang
School of Physics and Electronic Information, Luoyang Normal University, Luoyang 471022, China

Abstract—A novel offset-symbols joint selective mapping (J-SLM) scheme is proposed for the peak-to-average power ratio (PAPR) reduction in the Orthogonal Frequency Division Multiplexing with Offset Quadrature Amplitude Modulation (OFDM/OQAM) system. By exploiting the dispersive energy of the prototype filter, the proposed J-SLM scheme multiplies the real and imaginary parts of each data block with different phase rotation factors, and then adopts a sequential optimization procedure to jointly optimize the real and imaginary parts for each data block. Simulation results show that the J-SLM scheme could offer much better PAPR reduction and Bit Error Rate (BER) performances than the available SLM-based schemes of OFDM/OQAM signals.
Index Terms—Orthogonal Frequency Division Multiplexing (OFDM), Offset Quadrature Amplitude Modulation (OQAM), Peak-to-Average Power Ratio (PAPR), Selective Mapping (SLM)

Cite: Yujie Xia and Junjie Zhang, "PAPR Reduction for OFDM/OQAM Signals Using Offset-Symbols Joint SLM Method," Journal of Communications, vol. 11, no. 11, pp. 998-1004, 2016. Doi: 10.12720/jcm.11.11.998-1004