Multicast multigroup beamforming for per-antenna power constrained large-scale arrays
Multicast multigroup beamforming for per-antenna power constrained large-scale arrays
Large in the number of transmit elements, multi-antenna arrays with per-element limitations are in the focus of the present work. In this context, physical layer multigroup multicasting under per-antenna power constrains, is investigated herein. To address this complex optimization problem low-complexity alternatives to semi-definite relaxation are proposed. The goal is …