In this paper, we study hierarchical codebook design for channel estimation in millimeter-wave (mmWave) communications with a hybrid precoding structure. Due to the limited saturation power of the ...

The US Wood-Plastic Composite & Plastic Lumber market is projected to grow by USD 1.66 billion from 2020 to 2026, with an anticipated compound annual growth rate (CAGR) of 6.6%. This growth reflects ...

The tables—solid oak or elm structures with rounded edges and hand-glazed ceramic tops—were often, rather mysteriously, ...

As the backbone of modern energy systems, smart grids and digital substations promise efficiency and sustainability—but they ...

This contribution addresses the role of water molecules in crystal engineering by studying the crystal structures and thermal stabilities of 11 new cocrystal hydrates, all of which were characterized ...

Push-pull structure with balun transformer is presented as load modulation technique which improves the overall efficiency of power amplifier. Under the assumption that output impedance of turned-off ...