HetNets, if they work as planned, can provide huge boosts in coverage and capacity to wireless networks. A HetNet is essentially a blend of macrocells, radio heads, pico cells, and various other wireless communications systems and subsystems that must seamlessly interact to form a cohesive network. Although the interaction of so many different signals at different power levels has often been presented as the main challenge in designing and executing a HetNet, other problems can arise, including the problems from interference.

To help understand some of those problems and how to overcome them, a free report from Southern Methodist University (SMU) reviews the possible interference problems in a wireless HetNet and different ways in which the interference can be handled.