| 摘要: |
| 构建基于无人机基站（Unmanned Aerial Vehicle Base Station,UBS）的空地网络是解决移动通信网络覆盖等问题的重要途径。区别于地面移动通信网络，空地网络需要对UBS位置和用户关联进行联合优化。针对上述问题，首先通过构建二进制无线电地图（Binary Radio Map,BRM）使得UBS能够有效获取整个任务区域中用户位置关联的信道知识，在此基础上提出基于BRM的离线多UBS部署与用户关联联合规划方法。该方法以最大化网络效用函数为目标，通过互嵌套的启发式UBS部署位置搜索和基于匹配博弈的UBS-用户匹配实现UBS位置和用户关联的离线优化。在复杂城市环境下，相比于参考方案，所提方法可使得用户和速率性能提升10%~40%。 |
| 关键词: 空地网络 无人机基站部署 用户关联 二进制无线电地图 |
| DOI：10.20079/j.issn.1001-893x.230401004 |
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| 基金项目:国家自然科学基金资助项目（62271503，62071485）；江苏省自然科学基金项目（BK20201334，BK20231485） |
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| Radio Map Assisted Offline Multiple Unmanned Aerial Vehicle Base Stations Deployment and User Association |
| WAN Nuotian,WANG Yurong,ZHANG Tianning,MA Chengqian,XIA Xiaochen,XU Kui |
| (1.Institute of Communication Engineering,Army Engineering University of PLA,Nanjing 210007,China;2.Unit 31155 of PLA,Nanjing 210042,China) |
| Abstract: |
| Air-to-ground network based on unmanned aerial vehicle base station (UBS) is an important way to solve the coverage problem in mobile communication networks.Unlike terrestrial mobile communication networks,air-to-ground networks require joint optimization of UBS location and user association.To address the above issues,firstly,a binary radio map (BRM) is constructed to enable UBS to effectively acquire the user-specific channel knowledge in the entire mission area.On this basis,a BRM based offline multiple UBS deployment and user association scheme is proposed,where the network utility is maximized by iteratively implementing the heuristic UBS deployment position searching and matching game based UBS-user association.Compared with the reference schemes,the proposed scheme can achieve a sum rate performance enhancement of 10%~40% in the complex urban environments. |
| Key words: air-to-ground network unmanned aerial vehicle base station deployment user association binary radio map |
