Rotman Lens Based Hybrid Analog–Digital Beamforming in Massive MIMO Systems: Array Architectures, Beam Selection Algorithms and Experiments - Yuan Gao; Khaliel, Maher; Feng Zheng; Kaiser, Thomas (IEEE transactions on vehicular technology, 2017)
Keywords: Algorithms; Antenna arrays; Array signal processing; Arrays; Bandwidths; Beam selection; Beamforming; Broadband; Computer simulation; Error analysis; Greedy algorithms; hybrid analog-digital beamforming; Hybrid systems; Insertion loss; Lenses; Low cost; massive MIMO; MIMO; MIMO (control systems); Monte Carlo simulation; Phase shifters; Ports (Computers); Radio frequency; Rotman lens; Signal processing; Transceivers