From 2642392fc816e777731b1297c00ea9aeefb16f9b Mon Sep 17 00:00:00 2001
From: Andreas Tsouchlos <an.tsouchlos@gmail.com>
Date: Mon, 13 Feb 2023 14:21:57 +0100
Subject: [PATCH] Added notation diagram from midterm presentation

---
 latex/thesis/cel-thesis/cel-thesis.cls        | 16 ++++++++
 .../chapters/theoretical_background.tex       | 38 ++++++++++++++++++-
 latex/thesis/thesis.tex                       |  3 +-
 3 files changed, 54 insertions(+), 3 deletions(-)

diff --git a/latex/thesis/cel-thesis/cel-thesis.cls b/latex/thesis/cel-thesis/cel-thesis.cls
index 4fb5ade..f791698 100644
--- a/latex/thesis/cel-thesis/cel-thesis.cls
+++ b/latex/thesis/cel-thesis/cel-thesis.cls
@@ -13,6 +13,7 @@
 % ||      datetime                                          ||
 % ||      adjustbox                                         ||
 % ||      hyperref                                          ||
+% ||      xcolor                                            ||
 % ||========================================================||
 
 
@@ -100,6 +101,21 @@
     \fi
 }
 
+%
+% Corporate Design Colors
+%
+
+\RequirePackage{xcolor}
+\definecolor{KITgreen}{rgb}{0,.59,.51}
+\definecolor{KITblack}{rgb}{0,0,0}
+\definecolor{KITblue}{rgb}{.27,.39,.66}
+\definecolor{KITred}{rgb}{.63,.13,.13}
+\definecolor{KITpurple}{rgb}{.64,.06,.48}
+\definecolor{KITcyan}{rgb}{.14,.63,.87}
+
+\definecolor{KITyellow}{rgb}{.98,.89,0}
+\definecolor{KITorange}{rgb}{.87,.60,.10}
+
 %
 % Misc
 %
diff --git a/latex/thesis/chapters/theoretical_background.tex b/latex/thesis/chapters/theoretical_background.tex
index af09383..3197671 100644
--- a/latex/thesis/chapters/theoretical_background.tex
+++ b/latex/thesis/chapters/theoretical_background.tex
@@ -16,11 +16,47 @@
 \section{Notation}
 \label{sec:theo:Notation}
 
+%
+% TODOs
+%
+
 \begin{itemize}
     \item General remarks on notation (matrices, PDF, etc.)
-    \item Diagram from midterm presentation
+    \item \sout{Diagram from midterm presentation}
 \end{itemize}
 
+%
+% Figure showing notation for entire coding / decoding process
+%
+
+\tikzstyle{box} = [rectangle, minimum width=1.5cm, minimum height=0.7cm,
+                          rounded corners=0.1cm, text centered, draw=black, fill=KITgreen!80]
+\begin{figure}[htpb]
+    \centering
+
+    \begin{tikzpicture}[scale=1, transform shape]
+        \node (in) {$\boldsymbol{c}$};
+        \node[box, right=0.5cm of in] (bpskmap) {Mapper};
+        \node[right=1.5cm of bpskmap,
+              draw, circle, inner sep=0pt, minimum size=0.5cm] (add) {$+$};
+        \node[below=0.5cm of add] (noise) {$\boldsymbol{z}$};
+        \node[box, right=1.5cm of add] (decoder) {Decoder};
+        \node[box, right=1.5cm of decoder] (demapper) {Demapper};
+        \node[right=0.5cm of demapper] (out) {$\boldsymbol{\hat{c}}$};
+
+        \node at ($(bpskmap.east)!0.5!(add.west) + (0,0.3cm)$) {$\boldsymbol{x}$};
+        \node at ($(add.east)!0.5!(decoder.west) + (0,0.3cm)$) {$\boldsymbol{y}$};
+        \node at ($(decoder.east)!0.5!(demapper.west) + (0,0.3cm)$) {$\boldsymbol{\hat{x}}$};
+
+        \draw[->] (in) -- (bpskmap);
+        \draw[->] (bpskmap) -- (add);
+        \draw[->] (add) -- (decoder);
+        \draw[->] (noise) -- (add);
+        \draw[->] (decoder) -- (demapper);
+        \draw[->] (demapper) -- (out);
+    \end{tikzpicture}
+\end{figure}
+
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 \section{Channel Coding with LDPC Codes}
diff --git a/latex/thesis/thesis.tex b/latex/thesis/thesis.tex
index ba36df4..70b5d84 100644
--- a/latex/thesis/thesis.tex
+++ b/latex/thesis/thesis.tex
@@ -43,16 +43,15 @@
 % Generic packages
 %
 
-
 \usepackage[utf8]{inputenc}
 \usepackage[T1]{fontenc}
 \usepackage[ngerman]{babel}
+\usepackage{ulem}
 \usepackage{amsmath}
 \usepackage{amssymb, amsfonts, latexsym}
 \usepackage{float}
 \usepackage{listings}
 \usepackage{graphicx}
-\usepackage{xcolor}
 \usepackage{subcaption}
 \usepackage{bm}
 \usepackage{subcaption}