Effects of Vertical Fluctuations on Air-to-Ground mmWave UAV Communications
Effects of Vertical Fluctuations on Air-to-Ground mmWave UAV Communications
复制标题
垂直波动对空对地毫米波无人机通信的影响
DOI：
10.1109/lwc.2022.3205621
复制
发表时间：
2022-12
期刊：
影响因子：
--
通讯作者：
Z. Jane Wang
中科院分区：
文献类型：
--
作者：
Cunyan Ma;Xiaoya Li;Xie Xie;Xue Ma;Chen He;Z. Jane Wang
基于无人机（UAV）的毫米波通信具有独特的移动性和数据速率优势。然而，由于风、系统稳定性误差或姿态控制系统故障等因素，无人机的位置可能在水平和垂直方向上随机波动，从而影响毫米波信道阻塞特性和系统QoS性能。在这封信中，我们首次研究了无人机垂直方向波动对空对地毫米波无人机通信阻塞和QoS的影响。通过推导堵塞概率的封闭表达式，我们发现尽管堵塞概率与垂直波动的方差成正比，但由于方差的权重较小，垂直波动对堵塞概率的影响很小。垂直波动对可靠服务概率的影响较大。垂直波动越强，可靠服务概率越小，服务质量越差。最后，通过蒙特卡罗仿真验证了上述结论。
Unmanned aerial vehicle (UAV)-based millimeter wave (mmWave) communications have unique mobility and data rate advantages. However, the position of the UAV may fluctuate randomly in the horizontal and vertical directions due to wind, system stability error, or attitude control system fault, which may affect the mmWave channel blockage characteristic and system quality of service (QoS) performance. In this letter, we study the impact of UAV fluctuations in the vertical direction on the blockage and QoS of air-to-ground mmWave UAV communications for the first time. By deriving the closed-form expressions of blockage probability, we find that although the blockage probability is proportional to the variance of the vertical fluctuation, the vertical fluctuation has little effect on the blockage probability due to the small weight of the variance. In contrast, vertical fluctuations significantly impact the reliable service probability. The stronger the vertical fluctuation is, the smaller the reliable service probability and the worse the QoS. Finally, Monte Carlo simulations verify the above conclusions.
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DOI：
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