A self-organizing solution for interference avoidance in TDD underlay femtocells

In this paper, we draw our attention to the problem of interference avoidance in a macrocell-femtocell network. Further, macro user equipments operate in a Frequency Division Duplexing mode while all femtocells employ the macrocellular uplink spectrum in a Time Division Duplexing mode. We propose a self-adapting algorithm to tackle highly interfering MUEs through handover procedure. Results reveal that the proposed solution provides lower outage probability than closed and open access policies, without significant loss in terms of signal-to-noise-and-interference ratio.