\documentclass[a4paper,12pt]{report}
\usepackage[utf8]{}
\usepackage{graphicx}
\usepackage{geometry}
\usepackage{lipsum}
\usepackage{fontspec}
\usepackage{titlesec}
\usepackage{fancyhdr}
\usepackage{caption}
\usepackage{subcaption}
% Numero de pagina a la derecha
\fancyhf{}
\renewcommand{\headrulewidth}{0pt}
\fancyfoot[R]{\thepage}
\pagestyle{fancy}
\fancypagestyle{plain}{
\fancyhf{}
\renewcommand{\headrulewidth}{0pt}
\fancyfoot[R]{\thepage}
}
% Eliminar titulo de capitulo por defecto
\titleformat{\chapter}[display]
{\normalfont\bfseries}{}{0pt}{\Huge}
% Disminuir margen de titulo
\titlespacing*{\chapter}{0pt}{-50pt}{0pt}
\titlespacing*{\section}{0pt}{0pt}{0pt}
\titlespacing*{\subsection}{0pt}{0pt}{0pt}
% Normas de párrafos
\renewcommand{\baselinestretch}{1.5}
\setlength{\parskip}{12pt}
% Estilo de Font
\setmainfont{Times New Roman}
% Margenes de documento
\newgeometry{
top=2.5cm,
bottom=2.5cm,
outer=2.5cm,
inner=2.5cm,
includefoot,
footskip=1.5cm
}
% Renombrar títulos por defecto de secciones
\renewcommand{\contentsname}{Índice}
\renewcommand\bibname{Bibliografía}
\begin{document}
\include{Portada}
\include{DeclaratoriaAutoria}
\include{Abstract}
\include{PalabrasClave}
\tableofcontents
\include{Capitulos/Introduccion}
\include{Capitulos/Chapter1}
\include{Capitulos/Chapter2}
\include{Capitulos/Conclusiones}
\bibliographystyle{IEEEtran}
\bibliography{ref}
\addcontentsline{toc}{chapter}{Bibliografia}
\appendix
\include{Apendices/ApendiceA}
\end{document}