A Formulation of the Log-Logistic Distribution for Fading Channel Modeling
Metadata
Show full item recordEditorial
MDPI
Materia
Fading channels Log-logistic distribution Performance analysis Wireless communications
Date
2022-08-02Referencia bibliográfica
Sánchez, I.; López-Martínez, F.J. A Formulation of the Log-Logistic Distribution for Fading Channel Modeling. Electronics 2022, 11, 2409. [https://doi.org/10.3390/electronics11152409]
Sponsorship
European Social and Regional Funds; Junta de Andalucia P18-RT-3175 UMA20-FEDERJA-002; Universidad de Malaga; Universidad de GranadaAbstract
In some scenarios, the log-logistic (LL) distribution is shown to provide the best fit to field
measurements in the context of wireless channel modeling. However, a fading channel model based
on the LL distribution has not been formulated yet. In this work, we introduce the L-distribution
as a reformulation of the LL distribution for channel modeling purposes. We provide closed-form
expressions for its PDF, CDF, and moments. Performance analysis of wireless communication systems
operating under L-fading channels is exemplified, providing exact and asymptotic expressions for
relevant metrics such as the outage probability and the average capacity. Finally, important practical
aspects related to the use of the L-distribution for channel fitting purposes are discussed in two
contexts: (i) millimeter-wave links with misaligned gain, and (ii) air–ground channels in unmanned
aerial vehicle communications.