Minor cleanup

letter.tex

@@ -26,10 +26,6 @@
 \hyphenation{op-tical net-works semi-conduc-tor IEEE-Xplore}
 
 
-\newif\ifoverleaf
-%\overleaftrue
-
-
 %
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 % Inputs & Global Options
@@ -37,6 +33,18 @@
 %
 
 
+\newif\ifoverleaf
+%\overleaftrue 	% When enabled, this option allows the document to be compiled
+				% on overleaf:
+				%  - common.tex is sourced from a different directory
+				%  - TikZ Externalization is disabled
+				%  - Figures are included from pre-build PDFs
+
+
+%
+% Figures
+%
+
 \ifoverleaf
 	\input{common.tex}
 \else
@@ -45,12 +53,8 @@
 	\input{lib/latex-common/common.tex}
 \fi
 
-\addbibresource{letter.bib}
-\AtBeginBibliography{\footnotesize}
-
 \pgfplotsset{colorscheme/cel}
 
-% TODO
 \newcommand{\figwidth}{\columnwidth}
 \newcommand{\figheight}{0.75\columnwidth}
 
@@ -67,6 +71,13 @@
 	},
 }
 
+%
+% Bibliography
+%
+
+\addbibresource{letter.bib}
+\AtBeginBibliography{\footnotesize}
+
 
 %
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -362,6 +373,10 @@ decoded bits.%
 \begin{figure}
     \centering
 
+
+	\ifoverleaf
+		\includegraphics{figs/letter-figure0.pdf}
+	\else
 		\begin{tikzpicture}
 			\begin{axis}[
 				grid=both,
@@ -394,6 +409,7 @@ decoded bits.%
 				\addlegendentry{DFR}
 			\end{axis}
 		\end{tikzpicture}
+	\fi
 
     \caption{FER, DFR, and BER for $\left( 3, 6 \right)$-regular LDPC code with
         $n=204, k=102$ \cite[\text{204.33.484}]{mackay}.
@@ -427,6 +443,9 @@ optimization process.%
 \begin{figure}
     \centering
 
+	\ifoverleaf
+		\includegraphics{figs/letter-figure1.pdf}
+	\else
 		\begin{tikzpicture}
 			\begin{axis}[xmin = -1.25, xmax=1.25,
 						 ymin = -1.25, ymax=1.25,
@@ -470,9 +489,13 @@ optimization process.%
 				};
 			\end{axis}
 		\end{tikzpicture}
+	\fi
 
     \vspace{3mm}
 
+	\ifoverleaf
+		\includegraphics{figs/letter-figure2.pdf}
+	\else
 		\begin{tikzpicture}
 			\begin{axis}[xmin = -1.25, xmax=1.25,
 						 ymin = -1.25, ymax=1.25,
@@ -513,7 +536,7 @@ optimization process.%
 				\addlegendentry{$\nabla h\left(\tilde{\boldsymbol{x}}\right)$};
 			\end{axis}
 		\end{tikzpicture}
-
+	\fi
     \caption{Gradients
         $\nabla L\left(\boldsymbol{y} \mid \tilde{\boldsymbol{x}}\right)$
         and $\nabla h \left( \tilde{\boldsymbol{x}} \right)$ for a repetition
@@ -537,6 +560,9 @@ oscillate after a certain number of iterations.%
 \begin{figure}
     \centering
 
+	\ifoverleaf
+		\includegraphics{figs/letter-figure3.pdf}
+	\else
 		\begin{tikzpicture}
 			\begin{axis}[
 				grid=both,
@@ -567,6 +593,7 @@ oscillate after a certain number of iterations.%
 				\addlegendentry{$\left(\nabla h\right)_1$}
 			\end{axis}
 		\end{tikzpicture}
+	\fi
 
     \caption{Visualization of component $\left(\tilde{\boldsymbol{x}}\right)_1$
         for a decoding operation for a (3,6) regular LDPC code with
@@ -595,6 +622,9 @@ the probability that a given component was decoded incorrectly.%
 \begin{figure}[H]
     \centering
 
+	\ifoverleaf
+		\includegraphics{figs/letter-figure4.pdf}
+	\else
 		\begin{tikzpicture}
 			\begin{axis}[
 				grid=both,
@@ -610,6 +640,7 @@ the probability that a given component was decoded incorrectly.%
 					table [col sep=comma, y=p_error]{res/p_error.csv};
 			\end{axis}
 		\end{tikzpicture}
+	\fi
 
     \caption{Probability that a component of the estimated codeword
         $\hat{\boldsymbol{c}}\in \mathbb{F}_2^n$ is erroneous for a (3,6) regular
@@ -683,6 +714,9 @@ Again, these parameters were chosen,%
 \begin{figure}
     \centering
 
+	\ifoverleaf
+		\includegraphics{figs/letter-figure5.pdf}
+	\else
 		\begin{tikzpicture}
 			\begin{axis}[
 				grid=both,
@@ -727,6 +761,7 @@ Again, these parameters were chosen,%
 				\addlegendentry{BER, improved};
 			\end{axis}
 		\end{tikzpicture}
+	\fi
 
     \caption{FER and BER of proximal decoding \cite{proximal_paper} and the
         improved algorithm for a $\left( 3, 6 \right)$-regular LDPC code with
@@ -789,4 +824,3 @@ Ministry of Education and Research (BMBF) within the project Open6GHub
 \printbibliography
 
 \end{document}
-