论文摘要
Millimeter wave（mmWave） communications of unmanned aerial vehicles（UAVs） have drawn dramatic attentions for its flexibility on a variety of applications.Recently,channel tracking base on the spatial features has been proposed to solve the problem of beam misalignments due to the UAV navigation.However,unstable beam pointing caused by the non-ideal beam tracking environment may impact the performance of mmWave systems significantly.In this paper,an improved beamforming method is presented to overcome this shortcoming.Firstly,the effect of the beam deviation is analyzed through the establishment of the equivalent data rate.Then,combining the quantification of spatial angle and the improved orthogonal matching pursuit（OMP） algorithm,an optimized beam corresponding to the beam deviation is obtained.Simulation results show that the optimized beam of the proposed approach can effectively improve the spectral efficiency without improving the complexity when the beam pointing is unstable.
论文目录
文章来源
类型: 期刊论文
作者: Weizhi Zhong,Lei Xu,Qiuming Zhu,Xiaomin Chen,Jianjiang Zhou
来源: 中国通信 2019年01期
年度: 2019
分类: 信息科技,经济与管理科学,工程科技Ⅱ辑
专业: 航空航天科学与工程
单位: College of Astronautics,Nanjing University of Aeronautics and Astronautics,College of Electronic and Information Engineering,Nanjing University of Aeronautics and Astronautics
基金: supported by Aeronautical Science Foundation of China(2017ZC52021),the Fundamental Research Funds for the Central Universities(NS2017066),the Foundation of Graduate Innovation Center in NUAA(kfjj20171501),China Postdoctoral Science Foundation Funded Project(2015M581791)
分类号: V279;V243.1
页码: 37-46
总页数: 10
文件大小: 2487K
下载量: 31