Piecewise Digital Predistortion for mmWave Active Antenna Arrays: Algorithms and Measurements - Brihuega, Alberto; Abdelaziz, Mahmoud; Anttila, Lauri; Turunen, Matias; Allen, Markus; Eriksson, Thomas; Valkama, Mikko (IEEE transactions on microwave theory and techniques, 2020)
Keywords: 5G mobile communication; 5G new radio (NR); Adaptive algorithms; Algorithms; Antenna arrays; Antenna measurements; Antennas; Array signal processing; beamforming; Carrier frequencies; closed-loop (CL) learning; Complexity; Complexity theory; digital predistortion (DPD); Frequency ranges; Linearization; Machine learning; Millimeter waves; millimeter-wave (mmWave); nonlinear distortion; Orthogonal Frequency Division Multiplexing; over-the-air (OTA) measurements; Partitioning algorithms; piecewise (PW) processing; Polynomials; Transmitters; Waveforms