Source code (python and/or Matlab) for the paper N. T. Nguyen, K. Lee, and H. Dai, "Hybrid Beamforming and Adaptive RF Chain Activation for Cell-Free Millimeter-Wave Massive MIMO Systems," IEEE Transactions on Vehicular Technology, vol. 71, no. 8, pp. 8739 - 8755, May 2022. available at https://arxiv.org/pdf/2010.09162.pdf or published at https://ieeexplore.ieee.org/abstract/document/9780003 Please cite out paper if the code is used for your work.