Due to their low latency, high capacity, and seamless worldwide coverage, low Earth orbit (LEO) satellites are essential to the equal access network. Stochastic geometry (SG) is an appropriate method for such a large and irregular system. The SG model can effectively assess and estimate the performance of the network as well as handle the growing network scale. In this article, a number of common satellite distribution models are examined. In the non-technical description, system-level metrics such as coverage probability are introduced. The impact of gateway density, as well as the quantity and height of satellites, on latency and likelihood of coverage, is then researched. This essay concludes by outlining potential uses for SG in the future.
翻译:低地球轨道卫星由于其潜伏性低、容量高、覆盖无缝,对平等接入网络至关重要。对如此庞大和不规则的系统来说,实测几何(SG)是适当的方法。SG模型可以有效地评估和估计网络的性能,并处理网络规模不断扩大的问题。在本条中,对一些共同的卫星分配模型进行了研究。在非技术说明中,引入了诸如覆盖概率等系统级指标。然后对网关密度以及卫星数量和高度对延时率和覆盖可能性的影响进行了研究。论文最后概述了SG今后的潜在用途。