This paper investigates the properties of a cellular mobile radio system with the capability to dynamically adapt the downtilt at the base station on a per terminal basis. We compare several realization options of this vertical beam steering and explore the impacts of downtilt, vertical half-power beam width (HPBW) and inter-site distance (ISD) on spectral efficiency and cell coverage. We show that our approach improves performance in single-cell environment and can achieve a significant amount of interference avoidance already without any kind of coordination between cells.
Extreme high rate demands for 6G can be addressed by communication technologies in the millimeter wave and Terahertz bands. In these high carrier frequencies, power consumption can become a key limiting factor and thus has to be assessed thoroughly. This paper considers the power consumption of the RF frontend of a transceiver for the use in a hot spot scenario. A power consumption model for the main functional blocks has been derived for different frequencies and array architectures, both at transmit and receive side. The impact of the EIRP reduction over the frequency range from 90 GHz up to 230 GHz due to increased path loss and reduced output power of the power amplifiers has been assessed and the related power consumption has been evaluated. Further, the impact of analog-todigital converters on the overall power consumption of the receive part have been carved out. Key dominating components have been identified indicating the number of antenna elements needed for different architectures and the related power consumption.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.