Resumo

BECERRA, J. M. D  e  ORTIZ, J. E. Statistical independence of reflection and transmission coefficients on PLT due to system loads. Ing. Investig. [online]. 2014, vol.34, n.2, pp.71-75. ISSN 0120-5609.  https://doi.org/10.15446/ing.investig.v34n2.40141.

This paper presents the theoretical development of the covariance between reflection and transmission coefficients caused by system loads in electric grids. This result allows the calculation of the expected value and covariance of the channel response; these parameters can be used as design criteria in telecommunication networks over power lines in in-home environments. Additionally, the product of these variables is encountered commonly in the channel transfer function, whereby it can be determined if the calculation of these parameters can be simplified when this product is on a given path. For this purpose, the random behavior of the channel response caused by human activity is represented by a multipath model with a stochastic addition, where the reflection coefficient is treated as a random complex variable, providing more information compared to the real field.

Palavras-chave : PLT; PLC; BPL; system load; stochastic model; covariance; channel.

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