| 摘要: |
| 速率分割多址接入(Rate-Splitting Multiple Access,RSMA)技术可以针对各种网络负载和用户信道条件提升频效、能效、用户公平性和服务质量，因此有望成为超5G(Beyond 5G,B5G)和6G中关键的多址接入技术。与此同时，无人机(Unmanned Aerial Vehicle,UAV)因具有良好的机动性、强视距链路、易于实施且成本低等特点而在无线通信领域中得到了广泛应用。将RSMA技术和UAV相结合成为B5G和6G的一个重要研究方向，基于RSMA的UAV网络资源分配问题成为学术研究的热点。通过梳理相关现有研究文献，从4个方面概述了基于RSMA的UAV网络资源分配研究现状，包括无人机基站的资源分配、无人机中继系统的资源分配、无人机挂载智能反射面的资源分配、无人机辅助边缘计算的资源分配。最后在总结当前研究的基础上，对未来的研究方向进行了展望。 |
| 关键词: 无人机基站 无人机中继；速率分割多址接入(RSMA) 资源分配 |
| DOI：10.20079/j.issn.1001-893x.240729002 |
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| 基金项目:四川省区域创新合作项目（2022YFQ0017） |
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| Review of Resource Allocation in UAV Networks Based on RSMA |
| WANG Zhengqiang,REN Kai,WAN Xiaoyu,FAN Zifu,ZHU Xiaobo |
| (1.School of Communications and Information Engineering,Chongqing University of Posts and Telecommunications,Chongqing 400065,China;2.The Second Research Institute of CAAC,Chengdu 610041,China) |
| Abstract: |
| Due to its ability to enhance spectral efficiency,energy efficiency,user fairness,and service quality under various network loads and user channel conditions,rate-splitting multiple access(RSMA) technology is expected to become a key multiple access technology in beyond 5G(B5G) and 6G.Simultaneously,unmanned aerial vehicles(UAVs) are widely applied in the field of wireless communication due to their excellent mobility,strong line-of-sight links,ease of implementation,and low cost.Combining RSMA technology with UAVs has become an important research direction in B5G and 6G.The study of resource allocation problems in RSMA-based UAV networks has become a research hotspot in academia.By reviewing relevant literatures,the authors summarize the current state of research on resource allocation in RSMA-based UAV networks from four perspectives,including resource allocation for UAV base stations,UAV relay systems,UAV-mounted intelligent reflecting surfaces,and UAV-assisted edge computing.Finally,based on the summary of current research,future research directions are proposed. |
| Key words: UAV base station UAV relay rate-splitting multiple access(RSMA) resource allocation |
