Recent deployments of dense satellite constellations will soon lead to a paradigm shift in the availability of wireless connectivity around the globe. Optimizing the characteristics of such constellations is vital for an adequate techno-economic performance. This letter presents an analytic framework for optimizing the altitude of dense satellite constellations to maximize the downlink probability of coverage. The framework leverages related research that formulates the probability of coverage which in turn is based on tools from stochastic geometry. A higher constellation altitude would usually lead to a better satellite availability, but it also causes higher losses in the signal power. Thus, there is an optimal altitude where the constellation strikes the balance between these two factors among others. The presented analytic framework shows the optimal altitude under different scenarios that are also validated using simulations.

中文翻译：

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实现最大覆盖范围的最佳卫星星座高度


最近密集卫星星座的部署将很快导致全球无线连接可用性的范式转变。优化这些星座的特征对于获得足够的技术经济绩效至关重要。这封信提出了一个分析框架，用于优化密集卫星星座的高度，以最大化下行链路覆盖概率。该框架利用相关研究来制定覆盖概率，而覆盖概率又基于随机几何工具。较高的星座高度通常会带来更好的卫星可用性，但也会导致信号功率损失更大。因此，存在一个最佳高度，星座在该高度上在这两个因素之间取得平衡。所提出的分析框架显示了不同场景下的最佳高度，并通过模拟进行了验证。