Improved Hierarchical Codebook-Based Channel Estimation for mmWave Massive MIMO Systems - Yoon, Sung-Geun; Lee, Seung Joon (IEEE wireless communications letters, 2022)
Keywords: Array signal processing; Beamforming; Channel estimation; Codes; Data transmission; Estimation; hierarchical codebook; Massive MIMO; Millimeter waves; MIMO communication; mmWave; Signal to noise ratio; Simulation; Training