Zhuoming Feng Xiongfei Tao Weizhong Liu Zuoqi Hu PAPR Reduction in SC-IFDMA Using a Piece-Wise Linear Nyquist Filter. 487-490 2015 19 IEEE Commun. Lett. 3 https://doi.org/10.1109/LCOMM.2015.2389250 db/journals/icl/icl19.html#FengTLH15