无人系统技术2024,Vol.7Issue(3) :28-39.DOI:10.19942/j.issn.2096-5915.2024.03.25

可见光辅助无人机通信网络容量优化方法

Research on Capacity Optimization for Visible Light-assisted UAV Communication Networks

李骞 唐堂 王叶群 王平禄 陈姣 石磊
无人系统技术2024,Vol.7Issue(3) :28-39.DOI:10.19942/j.issn.2096-5915.2024.03.25

可见光辅助无人机通信网络容量优化方法

Research on Capacity Optimization for Visible Light-assisted UAV Communication Networks

李骞 1唐堂 1王叶群 1王平禄 1陈姣 1石磊1
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作者信息

  • 1. 空军工程大学信息与导航学院,西安 710077
  • 折叠

摘要

针对无人机(UAVs)网络高速数据传输和高能效接入问题,开展了可见光通信(VLC)辅助UAV网络容量和位置部署优化技术研究.首先,考虑到非正交多址接入(NOMA)高能效和大连接特点,构建了基于NOMA的VLC辅助UAV网络模型;其次,提出了面向多约束的以系统容量优化(SCO)为目标的资源分配策略,旨在保证服务质量与照明需求、人眼安全、功率限制前提下实现总速率和UAV部署联合优化;然后,构建SCO资源分配模型并运用最优化理论求解;最后,仿真发现,SCO策略下的系统容量相较于现有方案提升了35%;当存在残存干扰和链路遮挡时,系统容量将提升184.8%,证明了该方法的有效性.因此,与现有方案相比,SCO策略在提升UAV-VLC网络容量和用户接收性能方面更优.

Abstract

With regard to the problem of high-rate data transmission and energy-efficient access in unmanned aerial vehicles(UAVs)networks,the optimization of capacity and location deployment in visible light communication(VLC)-assisted UAV networks is investigated.Firsty,considering the high energy efficiency and large connection characteristics of non-orthogonal multiple access(NOMA),a NOMA-based VLC-assisted UAV network model is constructed.Secondly,a multi-constraint-oriented resource allocation strategy with the system capacity maximization is proposed,aiming at the joint optimization of the sum rate and UAV deployment while ensuring the quality of service and illumination demand,eye safety and power constraints.Then,the corresponding resource allocation model is constructed and solved through the optimization theory.Finally,the simulation shows that the system capacity under the proposed strategy is improved by 35%compared to the existing schemes.When the residual interference and link occlusion exist at the receiver,the system capacity will be improved by 184.8%,which demonstrates the effectiveness of the proposed method.Therefore,the proposed strategy is superior in enhancing the UAV-VLC network capacity and user reception performance compared to the existing schemes.

关键词

无人机网络/可见光通信/非正交多址接入/容量优化/位置部署/资源分配

Key words

Unmanned Aerial Vehicles(UAVs)Communication Networks/Visible Light Communica-tion(VLC)/Non-orthogonal Multiple Access(NOMA)/Capacity Optimization/Location Deployment/Resource Allocation

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出版年

2024
无人系统技术

无人系统技术

CSCD
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