On the Scalability Limits of Communication Networks to the

to my parents, and to my brother Franc Acknowledgements Finding myself about to write the acknowledgements of this thesis, I just realize that my PhD is about to come to an end. It is now time to thank the many people who have accompanied me through this long and fruitful journey. First and foremost, I would like to express my deep and sincere gratitude to my extraordinary thesis ad-visors, Dr. Eduard Alarcón and Dr. Albert Cabellos-Aparicio. Their profound dedication and tireless work shaped this PhD thesis and inspired me throughout its development. Whenever I felt lost, their wise guidance served as a lighthouse that pointed me to the right di-rection. I consider myself extremely lucky to have had such excellent advisors of my PhD thesis. Right before starting my PhD, I was in a sea of doubts about my future. I am very grateful to Dr. Josep Solé-Pareta for having invite