电讯技术2017，Vol.57Issue(9)：1058-1063,6.DOI:10.3969/j.issn.1001-893x.2017.09.014
一种降低FBMC-OQAM系统PAPR的低复杂度选择性映射算法
A Low-complexity Selective Mapping Algorithm for PAPR Reduction in FBMC-OQAM Systems
吴建霞 1杨永立 1潘畅1
作者信息
- 1. 武汉科技大学 信息科学与工程学院,武汉430081
- 折叠
摘要
Abstract
Filter-bank multi-carrier( FBMC) is one of the key objects of the fifth generation cellular net-work(5G) radio access technology. However,there is also a high peak-to-average power ratio(PAPR). Through analyzing the overlapping characteristics and signal power distribution characteristics of FBMC-OQAM signal,the selective mapping( SLM) method of reducing PAPR in OFDM system is improved,and a Low-complexity Dispersion Selective Mapping(LD-SLM) method is proposed,which is better than the Dispersive Selective Mapping( DSLM) method. The LD-SLM method rotates the current data block signal with the alternative rotation vector,and selects the optimal rotation vector by calculating the PAPR of the signal in the current signal period [T,3T],and updates the current data block signal. The data block sig-nals are similarly optimized until all data blocks are optimized. By comparing the algorithm complexity,it is concluded that the LD-SLM algorithm is 50％ lower than the DSLM algorithm. The simulation results show that the LD-SLM method can effectively reduce the PAPR of the FBMC-OQAM system.关键词
FBMC-OQAM系统/峰均功率比降低/选择性映射/低复杂度算法Key words
FBMC-OQAM system/peak-to-average power ratio( PAPR) reduction/selective mapping/low-complexity algorithm分类
信息技术与安全科学引用本文复制引用
吴建霞,杨永立,潘畅..一种降低FBMC-OQAM系统PAPR的低复杂度选择性映射算法[J].电讯技术,2017,57(9):1058-1063,6.
