Minor wording changes

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Andreas Tsouchlos 2023-04-24 12:55:11 +02:00
parent 4572cde3e8
commit 302275cb45
4 changed files with 29 additions and 9 deletions

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@ -0,0 +1,18 @@
\chapter*{Acknowledgements}
I would like to thank Prof. Dr.-Ing. Laurent Schmalen for granting me the
opportunity to write my bachelor's thesis at the Communications Engineering Lab,
as well as all other members of the institute for their help and many productive
discussions, and for creating a very pleasant environment to do research in.
I am very grateful to Dr.-Ing. Holger Jäkel
for kindly providing me with his knowledge and many suggestions,
and for his constructive criticism during the preparation of this work.
Special thanks also to Mai Anh Vu for her invaluable feedback and support
during the entire undertaking that is this thesis.
Finally, I would like to thank my family, who have enabled me to pursue my
studies in a field I thoroughly enjoy and who have supported me completely
throughout my journey.

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@ -27,12 +27,13 @@ of the \ac{MAP} decoding problem \cite{proximal_paper}.
The motivation behind applying optimization methods to channel decoding is to
utilize existing techniques in the broad field of optimization theory, as well
as find new decoding methods not suffering from the same disadvantages or exhibiting
other desirable properties.
as find new decoding methods not suffering from the same disadvantages as
existing message passing based approaches, or exhibiting other desirable properties.
\Ac{LP} decoding, for example, comes with strong theoretical guarantees
allowing it to be used as a way of closely approximating \ac{ML} decoding,
allowing it to be used as a way of closely approximating \ac{ML} decoding
\cite[Sec. I]{original_admm},
and proximal decoding is applicable to non-trivial channel models such
as \ac{LDPC}-coded massive \ac{MIMO} channels.
as \ac{LDPC}-coded massive \ac{MIMO} channels \cite{proximal_paper}.
This thesis aims to further the analysis of optimization based decoding
algorithms as well as verify and complement the considerations present in

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@ -179,9 +179,9 @@ codewords:
&= \argmax_{c\in\mathcal{C}} \frac{f_{\boldsymbol{Y} \mid \boldsymbol{C}}
\left( \boldsymbol{y} \mid \boldsymbol{c} \right) p_{\boldsymbol{C}}
\left( \boldsymbol{c} \right)}{f_{\boldsymbol{Y}}\left( \boldsymbol{y} \right) } \\
&= \argmax_{c\in\mathcal{C}} f_{\boldsymbol{Y} \mid \boldsymbol{C}}
\left( \boldsymbol{y} \mid \boldsymbol{c} \right) p_{\boldsymbol{C}}
\left( \boldsymbol{c} \right) \\
% &= \argmax_{c\in\mathcal{C}} f_{\boldsymbol{Y} \mid \boldsymbol{C}}
% \left( \boldsymbol{y} \mid \boldsymbol{c} \right) p_{\boldsymbol{C}}
% \left( \boldsymbol{c} \right) \\
&= \argmax_{c\in\mathcal{C}}f_{\boldsymbol{Y} \mid \boldsymbol{C}}
\left( \boldsymbol{y} \mid \boldsymbol{c} \right)
.\end{align*}
@ -342,7 +342,7 @@ In contrast to the established message-passing decoding algorithms,
the perspective then changes from observing the decoding process in its
Tanner graph representation with \acp{VN} and \acp{CN} (as shown in figure \ref{fig:dec:tanner})
to a spatial representation (figure \ref{fig:dec:spatial}),
where the codewords are some of the edges of a hypercube.
where the codewords are some of the vertices of a hypercube.
The goal is to find the point $\tilde{\boldsymbol{c}}$,
which minimizes the objective function $g$.

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@ -35,7 +35,7 @@
\usetikzlibrary{spy}
\usetikzlibrary{shapes.geometric}
\usetikzlibrary{arrows.meta,arrows}
\tikzset{>=stealth}
\tikzset{>=latex}
\pgfplotsset{compat=newest}
\usepgfplotslibrary{colorbrewer}
@ -210,6 +210,7 @@
%
% 6. Conclusion
\include{chapters/acknowledgements}
\tableofcontents
\cleardoublepage % make sure multipage TOCs are numbered correctly