Pricing in Noncooperative Interference Channels for Improved Energy-Efficiency

The authors consider non-cooperative energy-efficient resource allocation in the interference channel. Energy-efficiency is achieved when each system pays a price proportional to its allocated transmit power. In non-cooperative game-theoretic notation, the power allocation chosen by the systems corresponds to the Nash equilibrium. They study the existence and characterize the uniqueness of this equilibrium. Afterwards, pricing to achieve energy-efficiency is examined. They introduce an arbitrator who determines the prices that satisfy minimum QoS requirements and minimize total power consumption.