Abstract: This paper proposes a hybrid beamforming framework for massive multiple-input multiple-output (MIMO) in near-space airship-borne communications. To achieve high energy efficiency (EE) in ...

Elementary school teachers report increasing behavioral problems among young students. Schools are helping to better train teachers to deal with classroom behavior issues. Elementary teachers say they ...

A sign in a classroom at Lead Elementary encourages children to take a break when feeling big emotions. Teachers across the country say student behavior is still challenging post-pandemic, and more ...

Abstract: To address the complexities of spatial non-stationary (SnS) effects and spherical wave propagation in near-field channel estimation (CE) for extremely large-scale multiple-input ...