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Channel Model for Satellite Communication Links Above 10GHz Based on Weibull Distribution

机译：基于威布尔分布的10GHz以上卫星通信链路的信道模型

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摘要

Modern satellite communication networks will employ frequencies above 10GHz. At these frequency bands, rain attenuation is the dominant fading mechanism. In this paper, a novel channel model, a synthesizer for generating rain attenuation time series for satellite links operating at 10GHz and above is presented. The proposed channel model modifies Maseng-Bakken (M-B) model since it generates rain attenuation time series that follow the Weibull distribution. The new stochastic dynamic model is based on the first-order Stochastic Differential Equations (SDEs) and considers rain attenuation induced on a slant path as a Weibull-based stochastic process. Moreover, the theoretical expressions for the computation of the exceedance probability of hitting time random variable are presented. The hitting time statistics may be employed for the optimum design of Fade Mitigation Techniques (FMTs). The synthesizer is verified in terms of the exceedance probability and the theoretical CCDF of hitting time comparing to these derived from the simulations in the numerical results section.
机译：现代卫星通信网络将采用10GHz以上的频率。在这些频段，降雨衰减是主要的衰落机制。本文提出了一种新颖的信道模型，即一种合成器，用于为工作在10GHz及以上的卫星链路生成降雨衰减时间序列。拟议的信道模型修改了Maseng-Bakken（M-B）模型，因为它生成遵循Weibull分布的降雨衰减时间序列。新的随机动力学模型基于一阶随机微分方程（SDE），并将倾斜路径上引起的降雨衰减视为基于Weibull的随机过程。给出了计算命中时间随机变量超越概率的理论表达式。击球时间统计数据可用于减轻褪色技术（FMT）的最佳设计。与从数值结果部分中的仿真得出的结果相比，根据超出概率和命中时间的理论CCDF对合成器进行了验证。

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