Utility-Based Power Control for Interference Mitigation in a Mixed Femtocell-Macrocell Environment
Femtocell networks are about to be deployed for the improvements in the cellular coverage and capacity. However, this deployment is non trivial (mainly) because of the extra interference that they cause to the macrocell users that share the same portion of the spectrum. This paper proposes a non cooperative power control approach for interference mitigation in a mixed femtocell-macrocell environment. The authors define objective functions that are different for each type of user and they compute the transmission powers that maximize the objective function of each user. Finally, they propose a distributed iterative power control scheme that, starting from any initial power vector, converges to these transmission powers.