Interference Alignment and DOF Analysis of Interference and Interference Broadcast Channels by Jhanak Parajuli A thesis submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy in Electrical Engineering Approved Dissertation Committee: Prof. Dr. Eng. Giuseppe Abreu (Jacobs University Bremen) Prof. Dr. Ing. Werner Henkel (Jacobs University Bremen) Dr. Antti T¨ olli (CWC, University of Oulu) Date of Defense: September 22, 2016. Computer Science & Electrical Engineering, Jacobs University Bremen