Robust LMMSE Beamformer Design by Naive UL/DL Duality and Validation for Non-Cooperative Massive MIMO

Advanced Dynamic Spectrum 5G Mobile Networks Employing Licensed Shared Access

“…These antennas are steered by 12 ExpressMIMO2 radio cards with each radio card having 4 transceivers. The design of beamformer is applied on every frequency subcarrier individually for 5MHz LTE transmission which uses 300 occupied subcarriers [14].…”