悬停波动对毫米波无人机通信系统QoS的影响研究

毫米波无人机通信是未来通信中一种很有前途的候选者。然而,悬停无人机的随机波动会影响该通信系统的服务质量,并给毫米波无人机通信的应用带来挑战。该文从无人机位置波动对无人机-用户链路质量的影响的角度出发,研究无人机位置波动对空对地毫米波无人机通信系统QoS的影响。以可靠服务概率及覆盖概率作为评估系统QoS的指标,基于随机几何获得QoS评估指标的表达式并通过蒙特卡洛仿真进行验证。结果显示,QoS随无人机波动强度的增加而降低且存在使QoS最大的最优无人机高度,为毫米波无人机通信网的设计与研究提供参考依据。

Millimeter wave(mmWave)unmanned aerial vehicle(UAV)communication is a promising candidate for future communications.However,the random fluctuations of hovering UAVs will affect the Quality of Service of the system,which brings challenges to the application of mmWave UAV communication.This paper investigates the impact of hovering UAV position fluctuations on the QoS of air-to-ground mmWave UAV communication from the perspective of the effects of UAV position fluctuations on the quality of UAV-user link.We use reliable service probability and coverage probability as indicators for evaluating the QoS.The expression of the QoS evaluation indicators is obtained through stochastic geometry and verified through Monte Carlo simulations.The results show that the QoS decreases with the increase of UAV position fluctuations level,and there is an optimal UAV height that maximizes the QoS,which provides a reference for the future design and research of mmWave UAV networks.