Cross-layer multi-user selection in 5G heterogeneous networks based on hybrid beamforming optimization for millimeter-waves
Cross-layer multi-user selection in 5G heterogeneous networks based on hybrid beamforming optimization for millimeter-waves
Lack of coordination between network layers limits the performance of most proposed solution for new challenges posed by wireless networks. To overcome such limitations, cross-layer physical and medium access (PHY-MAC) design for multi-input-multi-output orthogonal frequency division multiple access system in heterogeneous networks (HetNETs) is proposed. In this paper, we formulate an optimization problem for hybrid beamforming, in a multi-user HetNET scenario aiming to maximize the total system