An Improved Auction based Power Control in Multi-Cell NOMA Networks

Abstract

In this paper, we introduce an improved Auctionbased scheme to handle power control in multi-cell non-orthogonal multiple access (MC-NOMA) networks. The problem is formulated as the maximization of some energy efficiencies under the quality of service (QoS) and the interference constraints. The problem is non-convex. However, we leveraged the fractional nature of the energy efficiency function and the Lagrangian relaxation to design the proposed scheme. The proposed scheme is designed to allocate the power to fulfill the QoS requirements while suppressing interference. The simulation results show that the proposed scheme achieves good results and outperforms other methods in the literature.