重庆邮电大学学报（自然科学版）2017，Vol.29Issue(5)：625-632,8.DOI:10.3979/j.issn.1673-825X.2017.05.008
降低FBMC-OQAM峰均值比方法的研究
Research on the algorithm for reducing PAPR of FBMC-OQAM
摘要
Abstract
Aiming at the problem that the Peak-to-Average Power Ratio(PAPR) is too high for the Filter Bank Multicarrier/Offset Quadrature Amplitude Modulation (FBMC-OQAM) system,a dual layered iterative partial transmit sequence algorithm in FBMC-OQAM system was proposed.Based on the traditional iterative partial transmit sequence algorithm,the proposed algorithm improves the search method,divides the phase factors into parity vectors to iterate,thus expandsing the search scope of the algorithm.Moreover,combined with the overlapping characteristics of FBMC-OQAM system,it uses the overlap between the data blocks.The proposed algorithm takes the phase factor vector that minimizes the PAPR of the sum of the signal after the current symbol block and the signal in the register window as the optimum phase factor vector,so as to improve the performance of the PAPR without increasing the amount of calculation.The simulation results show that the PAPR suppression effect of the improved dual layered iterative partial transmit sequence algorithm is significantly better than that of the traditional algorithm,the bit error rate is lower than that of the traditional algorithm,and the computational complexity is significantly lower than that of the partial transmission sequence algorithm.关键词
滤波器组多载波/峰均值比/迭代PTS算法Key words
multi-carrier filter bank/quadrature amplitude modulation/peak to average power ratio/iterative partial transmit sequence algorithm分类
信息技术与安全科学引用本文复制引用
李若梦,唐青青..降低FBMC-OQAM峰均值比方法的研究[J].重庆邮电大学学报（自然科学版）,2017,29(5):625-632,8.基金项目
长江学者和创新团队发展计划(TRT1299) （TRT1299）
重庆市科委重点实验室专项经费(cstc2013yykfA40010)The Changjiang Scholars and Innovative Team Development Program (IRT1299) （cstc2013yykfA40010）
The Chongqing Municipal Science and Technology Commission Key Laboratory of Special Funded Projects (cstc2013yykfA40010) （cstc2013yykfA40010）
