\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.