Monotonic Optimization Framework for the Two-User MISO Interference Channel.

The article discusses a non-convex optimization framework for the two-user MISO interference channel, which is based on monotonic optimization by outer polyblock approximation. The authors first presented objective functions that represents terms of differences of monotonic increasing functions and after it, problems were reformulated as maximization of increasing functions over normal constraint sets. The tests revealed the advantages of the proposed framework over existing ones.