Non-Orthogonal Multiple Access in Large-Scale Heterogeneous Networks
Non-Orthogonal Multiple Access in Large-Scale Heterogeneous Networks
In this paper, the potential benefits of applying non-orthogonal multiple access (NOMA) technique in K -tier hybrid heterogeneous networks (HetNets) is explored. A promising new transmission framework is proposed, in which NOMA is adopted in small cells and massive multiple-input multiple-output (MIMO) is employed in macro cells. For maximizing the …