Fairness Based Macro Base Station Power Control Algorithm in Heterogeneous Cellular Networks

In heterogeneous cellular networks, a macro base station(MBS) power control algorithm based on macro users' fairness is proposed in this paper. In this algorithm, macro users choose channels based on the interference from femtocells. Then, the power solution of MBS in every channel is derived through the non-cooperative game. The constructed game utility function considers not only the system capacity, but also the fairness among users. Meanwhile, the paper proves the existence of Nash equilibrium(NE). The results in simulation show that the gap among macro users' capacity is narrowed and outage probability is obviously improved.