arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2007.11869cs.NIeess.SP
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无人机间mmWave信道实验模型

An Experimental mmWave Channel Model for UAV-to-UAV Communications

Michele Polese, Lorenzo Bertizzolo, Leonardo Bonati, Abhimanyu Gosain, Tommaso Melodia

摘要:

无人机(UAV)网络可以提供弹性通信基础设施,以在流量高峰或灾难场景的情况下增强地面网络。然而,为了能够做到这一点,它们需要基于高带宽无线技术来实现无线电接入和回程。在这方面,毫米波(mmWave)频谱代表了一种诱人的解决方案,因为它提供了大量未开发的频谱,可以为空中平台提供超高的数据速率。然而,空中毫米波信道经历与相同频带中的地面部署显著不同的特性。到目前为止,毫米波空中信道尚未被广泛研究和建模。具体而言,UAV微移动性(由于控制回路中的不精确性以及包括风在内的外部因素)和高度定向的毫米波传输的组合需要特设模型来准确地捕获UAV部署的性能。为了填补这一空白,我们提出了一个经验传播损耗模型的无人机到无人机通信在60 GHz的基础上,进行了广泛的空中测量活动与Facebook的Terragraph信道探测器。我们将其与3GPP信道模型进行比较,并公开测量数据集。

英文摘要:

Unmanned Aerial Vehicle (UAV) networks can provide a resilient communication infrastructure to enhance terrestrial networks in case of traffic spikes or disaster scenarios. However, to be able to do so, they need to be based on high-bandwidth wireless technologies for both radio access and backhaul. With this respect, the millimeter wave (mmWave) spectrum represents an enticing solution, since it provides large chunks of untapped spectrum that can enable ultra-high data-rates for aerial platforms. Aerial mmWave channels, however, experience characteristics that are significantly different from terrestrial deployments in the same frequency bands. As of today, mmWave aerial channels have not been extensively studied and modeled. Specifically, the combination of UAV micro-mobility (because of imprecisions in the control loop, and external factors including wind) and the highly directional mmWave transmissions require ad hoc models to accurately capture the performance of UAV deployments. To fill this gap, we propose an empirical propagation loss model for UAV-to-UAV communications at 60 GHz, based on an extensive aerial measurement campaign conducted with the Facebook Terragraph channel sounders. We compare it with 3GPP channel models and make the measurement dataset publicly available.

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