通信学报2018，Vol.39Issue(4)：152-158,7.DOI:10.11959/j.issn.1000-436x.2018059
降低OFDM系统PAPR的改进SLM算法
Improved SLM algorithm for PAPR reduction in OFDM system
摘要
Abstract
In order to reduce the peak to average power ratio (PAPR) of the conventional selective mapping (SLM) algo-rithm, decrease the transmission of side-band information, and improve the spectral efficiency in the orthogonal frequen-cy division multiplexing (OFDM) system, the TL-SLM algorithm based on the conversion matrix and the chaotic se-quence was proposed firstly. Although the TL-SLM algorithm could effectively decrease the transmission of side-band information,the reduction of PA P R was limited.To solve this problem,an improved TL-SLM algorithm based on the ro-tation vector was proposed, which was the TR-SLM algorithm. TR-SLM algorithm introduced the rotation vector to gen-erate more time-domain alternative signals to further reducing the PA P R.The performance analysis shows that although the TL-SLM algorithm and the TR-SLM algorithm increase the complexity a little,the PA P R performance is effectively improved and the transmission of side-band information is greatly reduced.关键词
正交频分复用/转移矩阵/混沌序列/旋转向量/峰均功率比Key words
orthogonal frequency division multiplexing/conversion matrix/chaotic sequence/rotation vector/peak-to-average power ratio分类
信息技术与安全科学引用本文复制引用
季策,祝雯靖,魏颖,贾佃霞..降低OFDM系统PAPR的改进SLM算法[J].通信学报,2018,39(4):152-158,7.基金项目
国家自然科学基金资助项目(No.61673093,No.61370152) （No.61673093,No.61370152）
沈阳市科技计划基金资助项目(No.F16-205-1-01)The National Nature Science Foundation of China(No.61673093,No.61370152),Science and Technology Foundation Project of Shenyang(No.F16-205-1-01) （No.F16-205-1-01）
