基于无人机辅助边缘计算的收益策略优化研究

REVENUE STRATEGY OPTIMIZATION BASED ON UAV ASSISTED EDGE COMPUTING

  • 摘要: 在移动边缘计算场景下,为移动设备提供卸载机会的MEC处理器安装在无人驾驶飞行器(UAV)上,来帮助覆盖区域内的用户设备(UEs)任务卸载,然后将计算结果返回,无人机在服务区域根据最短距离原则确定悬停位置和高度。考虑到每架无人机计算资源和能量有限,该文目标是在资源受限情况下给资源定价。给出用户和服务器的收益模型,证明用户收益函数是凸函数;围绕计算资源定价进行Stackelberg博弈,以迭代的方式确定每个用户的卸载迁移率和最终资源定价。仿真结果表明,在服务器收益和系统总收益方面获得了显著的提高,但是牺牲了任务平均能耗与平均时延。

     

    Abstract: In the mobile edge computing scenario, the MEC processor, which provides mobile devices with the opportunity of unloading, is installed on the unmanned aerial vehicle (UAV) to help users' devices (UES) in the coverage area unload their tasks, and then the calculation results are returned. The UAV determines the hovering position and height in the service area according to the principle of the shortest distance. Considering the limited computing resources and energy of each UAV, this paper aims to price the resources in the case of limited resources. The revenue model of users and servers was given, and it was proved that the revenue function of users was convex. Stackelberg game was used to determine the offload mobility and final resource pricing of each user iteratively. The simulation results show that compared with the existing methods, the server revenue and the total system revenue are significantly improved, but the average task energy consumption and average delay are sacrificed.

     

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