Interference alignment (IA) is a cooperative transmission strategy that, under some
conditions, achieves the interference channel's maximum number of degrees of freedom …

Wireless systems in which multiple users simultaneously access the propagation medium
suffer from co-channel interference. Untreated interference limits the total amount of data …

In this dissertation we investigate the usefulness of feedback and propose new ways of
exploiting rate-limited feedback for the memoryless broadcast channels (BC). In the first part …