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Modeling air-to-ground path loss for low altitude platforms in urban environments

机译：模拟城市环境中低海拔平台的空地路径损耗

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The reliable prediction of coverage footprint resulting from an airborne wireless radio base station, is at utmost importance, when it comes to the new emerging applications of air-to-ground wireless services. These applications include the rapid recovery of damaged terrestrial wireless infrastructure due to a natural disaster, as well as the fulfillment of sudden wireless traffic overload in certain spots due to massive movement of crowds. In this paper, we propose a statistical propagation model for predicting the air-to-ground path loss between a low altitude platform and a terrestrial terminal. The prediction is based on the urban environment properties, and is dependent on the elevation angle between the terminal and the platform. The model shows that air-to-ground path loss is following two main propagation groups, characterized by two different path loss profiles. In this paper we illustrate the methodology of which the model was deduced, as well as we present the different path loss profiles including the occurrence probability of each.
机译：当涉及到空对无线服务的新出现应用时，空中无线无线电基站的覆盖占地面积的可靠预测至关重要。这些应用包括由于自然灾害，损坏的地面无线基础设施的快速恢复，以及由于人群的大规模移动，某些斑点的突然无线交通过载的实现。在本文中，我们提出了一种统计传播模型，用于预测低空平台和地面终端之间的空对地路径损耗。预测基于城市环境属性，并且取决于终端和平台之间的仰角。该模型表明，空对地路径损耗遵循两个主要传播组，其特征在于两个不同的路径损耗配置文件。在本文中，我们说明了推导了模型的方法，以及我们呈现了不同的路径损耗配置文件，包括每个的发生概率。

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