Supporting high user density and improving millimeter- wave (mm-Wave) spectral-efficiency (SE) is imperative in 5G systems. Current hybrid digital-to-analog beamforming (D-A BF) base stations (BS) can only support a particular user per radio frequency (RF) chain, which severely restricts mm-Wave SE. In this paper a novel low-complexity selection combining (LC- SC) is proposed for supporting high user density for mm-Wave BS. When compared with the current state of the art hybrid D-A BF, simulations show that LC-SC can support high user density and attain higher SE.
Low-Complexity Hybrid Digital-to-Analog Beamforming for Millimeter-Wave Systems with High User Density
01.06.2017
276935 byte
Aufsatz (Konferenz)
Elektronische Ressource
Englisch