Downlink Interference in Multi-Beam 5G Macro-Cell

Multi-beam antenna systems are the basic technology that is used in developed fifth-generation systems. This article is devoted to assessing the impact of a multi-beam antenna system on the interference level in the downlink. These interference are generated by neighboring base station antenna beams. The presented analysis is based on simulation studies in which the multi-elliptic propagation model is used. Transmission characteristics of propagation environments such as power delay profile and antenna beam patterns that define the geometric structure of the model were adopted on the basis of the 3GPP standard. The obtained results show the possibility of using the presented method to assess the separation angle between co-channel beams. It is the basis for minimizing spectral resources in the system.