Efeito do Sombreamento no Modelo η-μ Complexo para μ = 1/2 (Hoyt)

Alexander Melo, Michel Daoud Yacoub, Carlos R. N. da Silva

DOI: 10.14209/sbrt.2022.1570822589

Evento: XL Simpósio Brasileiro de Telecomunicações e Processamento de Sinais (SBrT2022)

Keywords: Hoyt η-μ Devanescimento Sombreamento

Abstract

The fading channel parameters vary according to the propagation environment, a fact already known and reported in the literature. It is evident that this variation directly impacts the performance of the system. In this paper, we investigate the effect of the stochastic variation of the unbalance parameter η of the complex model η-µ Format 2 for µ = 1/2, i.e., Hoyt. Starting from the hypothesis that the powers of the phase and quadrature components vary independently according to a Negative Exponential of unitary mean, the corresponding parameter η follows a Uniform from -1 to 1. With these hypotheses, we derive the resulting first-order statistics, namely: (i) the probability density function (PDF) and the cumulative distribution function (FDA) for the envelope and phase; (ii) the generalized moments of the envelope; and (iii) and the Figure of Fading, or Amount of Fading. It is shown that the variability of this parameter, here called shadowing, on average, tends to soften its effects on the resulting statistics.

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