Interference Management and Power Allocation for Energy-Efficient Cognitive Femtocell Networks

摘要: Energy efficiency of radio networks is a very important issue to meet the challenges raised by high demands traffic and energy consumption. Both cognitive femtocell have potential ability for efficiency. However, most previous works are focused on interference avoidance guarantee quality service (QoS) power control spectrum sharing in heterogeneous with femtocells, aspect largely ignored. In this paper, we study allocation management femtocells. Particularly, due same resource cross-tier there between fetmocells macrocell. case, introduce an price measure effect interference. Then formulate problem energy-efficient transmissions femtocells as Stackelberg game. And use backward induction method solve optimal determination. An iteration algorithm based updating proposed obtain equilibrium solution. Simulation results illustrated demonstrate algorithm, can be improved significantly scheme.