一种低复杂度的降低FBMC系统PAPR的PTS方法  

A LOW COMPLEXITY PTS METHOD FOR PAPR REDUCTION IN FBMC SYSTEM

作　　者：吴真 袁伟娜[1] Wu Zhen;Yuan Weina(School of Information Science and Engineering,East China University of Science and Technology,Shanghai 200237,China)

机构地区：[1]华东理工大学信息科学与工程学院,上海200237

出　　处：《计算机应用与软件》2023年第1期151-155,共5页Computer Applications and Software

基　　金：国家自然科学基金项目(61501187)。

摘　　要：滤波器组多载波技术(Filter Bank Multicarrier, FBMC)具有高峰均功率比(Peak-to-Average Power Ratio, PAPR)的问题,部分传输序列(Partial Transfer Sequence, PTS)是一种常用降低方法。提出一种基于多种群文化遗传算法(Multi-population Cultural Genetic Algorithm, MCGA)的改进分段PTS(Improved Segmental PTS,ISPTS)方法来降低PAPR。在传统分段PTS的方法基础上利用惩罚因子减少需要优化的段避免无效优化。利用MCGA进行相位因子搜索,减少了算法复杂度。仿真结果验证了该算法的优越性。Filter bank multicarrier(FBMC) has the problem of high peak to average power ratio(PAPR). Partial transfer sequence(PTS) is a common method to reduce it. This paper proposes an improved segment PTS(ISPTS) method based on multi population cultural genetic algorithm(MCGA) to reduce PAPR. On the basis of the traditional segment PTS method, the penalty factor was used to reduce the segments needed to be optimized and avoid invalid optimization. MCGA was applied to search the phase factor, which reduced the complexity of the algorithm. The simulation results verify the superiority of the proposed algorithm.

关 键 词：滤波器组多载波 峰均功率比 部分传输序列 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]