一种移动感知的混合FSO/RF下行链路方案  

A Mobile Awareness-based Hybrid Backhaul Based onRF and Free Space Optical Scheme

作　　者：朱志伟[1] ZHU Zhiwei(School of Electronics Information Engineering,Changsha Social Work College,Changsha 410004,China)

机构地区：[1]长沙民政职业技术学院电子信息工程学院,长沙410004

出　　处：《火力与指挥控制》2022年第8期74-78,共5页Fire Control & Command Control

基　　金：湖南省自然科学基金资助项目(2018JJ5070)。

摘　　要：无人机(unmanned aerial vehicle,UAV)作为移动基站(movable base stations,MBS),可有效提升蜂窝网络的通信性能。设计稳定的MBS与地面用户间的下行链路是该UAV-MBS网络的关键。为此,提出移动感知的混合射频与自由空间光(free space optical,FSO)下行链路方案。该方案依据MBS的移动状态对RF链路和FSO链路进行切换。该方案分别推导了RF链路、FSO链路和混合RF/FSO链路的误码率,并通过仿真分析上述3种链路的误码率性能。仿真结果表明,混合RF/FSO链路的误码率性能优于RF链路和FSO链路。Employing unmanned aerial vehicle(UAV)as movable base stations(MBSs)can effectively enhance the performance of a cellular network.To design a stable downline between the MBS and ground users is a key issue of UAV-MBS network.A mobile awareness-based hybrid RF and Free Space Optical(FSO)downlink scheme(MAHB)is proposed.The mobility state of the MBS is based to switch RF and FSO links.The error rate of RF,FSO and hybrid RF/FSO links are derived are respectively.Then the error rate performance of the above three kinds of links is analyzed by simulation.The simulation results show that the error rate performance of hybrid RF/FSO link is better than that of RF link and FSO link.

关 键 词：系留无人机 移动基站 自由空间光 下行链路 误码率 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]