基于随机几何的无人机通信系统性能研究

Research on performance of drone mobile systems basedon stochastic geometry

为了分析无人机通信系统的实际性能,针对有限三维空间内的无人机通信系统进行研究,提出了一种基于随机几何理论分析无人机通信系统的模型。较好地捕获无人机基站分布的随机性和无人机基站间的距离关系,得到无人机通信系统实际性能的上界和下界,充分兼顾无人机发射天线数、天线功率等参数对无人机通信系统性能的影响。仿真结果表明,所提模型能有效分析无人机通信系统的频谱效率、中断概率,且可以通过增加发射机天线数和设定较低的发射功率得到较好的无人机通信系统性能。

To investigate the performance of drone communication systems in practice,we studied the drone communication system in limited three-dimensional space in this paper.In particular,a model of drone communication system based on stochastic geometry theory is proposed,and this model can capture the randomness of drone base station distribution and distance relationship between drone base stations.On the basis of this model,the upper and lower bounds performance of the considered drone communication system can be obtained.In addition,the theoretical framework fully considers the effect of the number of antennas and power on the performance of drone communication systems.The numerical results confirm that the theoretical framework can effectively analyze the spectrum efficiency and outage probability of drone communication systems and better performance of UAV communication system can be obtained by increasing the number of transmitter antennas and lower transmission power.