无人机辅助空地协同无定形组网仿真评估

Performance Evaluation of UAV-aided Air-Ground Cooperative Amorphous Networks

现有无线通信网络正在从“以基站为中心的”蜂窝化组网向“以用户为中心的”无定形组网演进。然而,现有的无定形组网技术其组网的灵活性受限于地面基站的部署位置。针对现有无定形组网技术灵活性受限的问题,提出了空地协同无定形组网技术。通过采用以用户的需求驱动无人机中继悬停部署实现地理空间层面无定形组网,采用“控制覆盖与业务覆盖解耦”“上行覆盖和下行覆盖解耦”实现逻辑层面的无定形组网。仿真实验结果表明,采用无人机中继服务之后,边缘用户的控制平面时延平均下降了21%,业务平面时延平均下降了19%,证明了空地协同无定形组网能够提升小区边缘用户的业务体验。

The existing wireless communication network is evolving from the cellular network with base station as center to the amorphous cell with user as center.However,the flexibility of the existing amorphous cell technology is limited by the deployment location of ground stations.For the problem of limited flexibility of existing amorphous cell technology,the technology of air-ground cooperation amorphous cell is proposed.Specifically,the method of unmanned aerial vehicle(UAV)relay hover deployment driven by the user needs is adopted to realize the amorphous cell at the geospatial level,and the form of“decoupling control coverage and service coverage”and“decoupling uplink coverage and downlink coverage”is adopted to realize the amorphous cell at the logical level.The simulation results show that the control plane delay of edge users decreases by 21%averagely and the service plane delay is reduced by 19%averagely after using UAV relay service,which proves that the air-ground cooperation amorphous cell can improve the service experience of edge users.