RT Journal Article T1 Composite Fading Models Based on Inverse Gamma Shadowing: Theory and Validation. A1 Ramírez Espinosa, Pablo A1 López-Martínez, Francisco Javier K1 Sistemas de comunicaciones inalámbricos - Modelos matemáticos AB We introduce a general approach to characterizecomposite fading models based on inverse gamma (IG) shadowing. We first determine to what extent the IG distribution is anadequate choice for modeling shadow fading, by means of a comprehensive test with field measurements and other distributionsconventionally used for this purpose. Then, we prove that theprobability density function and cumulative distribution functionof any IG-based composite fading model are directly expressedin terms of a Laplace-domain statistic of the underlying fastfading model and, in some relevant cases, as a mixture of wellknown state-of-the-art distributions. Also, exact and asymptoticexpressions for the outage probability are provided, which arevalid for any choice of baseline fading distribution. Finally,we exemplify our approach by presenting several applicationexamples for IG-based composite fading models, for which theirstatistical characterization is directly obtained in a simple form. PB IEEE YR 2021 FD 2021-03-17 LK https://hdl.handle.net/10630/29295 UL https://hdl.handle.net/10630/29295 LA eng NO P. Ramírez-Espinosa and F. J. López-Martínez, "Composite Fading Models Based on Inverse Gamma Shadowing: Theory and Validation," in IEEE Transactions on Wireless Communications, vol. 20, no. 8, pp. 5034-5045, Aug. 2021 NO Política de acceso abierto tomada de: https://v2.sherpa.ac.uk/id/publication/3585 DS RIUMA. Repositorio Institucional de la Universidad de Málaga RD 21 ene 2026