现代电子技术2016，Vol.39Issue(15)：1-4,4.DOI:10.16652/j.issn.1004-373x.2016.15.001
基于DFT-GCS的ACO-OFDM系统PAPR抑制算法
DFT-GCS based PAPR suppression algorithm for ACO-OFDM system
摘要
Abstract
According to the signal characteristics of ACO⁃OFDM system,a PAPR suppression algorithm combining discrete Fourier transform(DFT)and grouping cyclic shifting(GCS)is proposed. In the method,the DFT precoding is used to reduce the correlation among the modulated symbols to suppress the PAPR preliminarily. And then the precoding signal is segmented in⁃to subblocks,and the GCS algorithm is performed for the subblocks to further suppress the PAPR. When the PAPR obtained in each circulation is less than the preset threshold,the algorithm will stop iteration so as to reduce the computation complexity. The simulation results show that the proposed algorithm has lower PAPR than the algorithm only using traditional DFT precoding or GCS algorithm.关键词
可见光通信/ACO-OFDM/DFT预编码/GCS算法/PAPRKey words
visible light communication/ACO-OFDM/DFT precoding/GCS algorithm/PAPR分类
信息技术与安全科学引用本文复制引用
孙怡菲,赵庆敏..基于DFT-GCS的ACO-OFDM系统PAPR抑制算法[J].现代电子技术,2016,39(15):1-4,4.基金项目
国家自然科学基金资助项目（11202093）；江西省软科学研究计划项目 （）
