摘要
在当前电磁频谱拥堵和无线电干扰严重的情况下,基于自由空间光(FSO)的无人机(UAV)通信网络作为推进空天地一体化进程的重要一环,得到了学术界和工业界的广泛关注。与传统射频通信相比,FSO通信具有高数据传输速率、低时延和高安全性等优势。然而,FSO链路易受大气信道条件影响,同时UAV高移动性、网络高动态性以及机载资源的有限性给FSO的稳定连接与可靠通信带来了巨大挑战。因此,该文在介绍了FSO传输特性的基础上,着重分析了提升基于FSO的UAV通信网络稳定性与通信质量的关键技术,在此基础上,归纳出高可靠、强智能、长续航的发展趋势,以期为基于FSO的UAV通信网络发展提供参考与借鉴。
Considering the electromagnetic spectrum congestion and serious interference,the Free Space Optical(FSO)-based Unmanned Aerial Vehicle(UAV)communication network constitutes an important part for the space-air-ground integration,attracting substantial attention from both academia and industry.Compared to radio frequency communication,FSO communication is benefited from high data rate,low latency and high security.However,the FSO link is susceptible to atmospheric environment,while the mobile UAV dynamics topology and limited resources bring further challenges.Therefore,this paper first introduces the FSO transmission characteristics and then focuses on the key technologies to enhance stability and quality of FSObased UAV networks.Furthermore,the development trend of FSO-based UAV network,in terms of high reliability,strong intelligence and long endurance is analyzed.
作者
冯斯梦
赵一迪
董超
吴启晖
FENG Simeng;ZHAO Yidi;DONG Chao;WU Qihui(Key Laboratory of Dynamic Cognitive System of Electromagnetic Spectrum Space,Ministry of Industry and Information Technology,Nanjing University of Aeronautics&Astronautics,Nanjing 211106,China)
出处
《电子与信息学报》
EI
CAS
CSCD
北大核心
2024年第6期2311-2322,共12页
Journal of Electronics & Information Technology
基金
国家自然科学基金青年科学基金(62001219),江苏省基础研究计划自然科学基金—前沿引领技术基础研究专项(BK20222013),江苏省产业前瞻与关键核心技术重点项目课题(BE2021013-4)。
关键词
空天地一体化
无人机通信网络
自由空间光通信
Space-air-ground integrated
Unmanned Aerial Vehicle(UAV)communication network
FSO-based communication
