Explains the main points of multiple user multiple input multiple output (MU MIMO) digital communications. Related videos: (see: ) • MIMO Communications • What is Massive MIMO? • What is Beamforming? • What is Multi Channel Beamforming? • How are Beamforming and Precoding Related? • Quick Introduction to MIMO Channel Estimation • Why doesn't MIMO work in Line-of-Sight (LoS) Channel Conditions? • How does Antenna Spacing affect Beamforming? • OFDM Waveforms • OFDM and the DFT • What is a Cyclic Prefix in OFDM? • What is Rayleigh Fading? • What is Rician Fading? • What are Fast Fading and Slow Fading? • What are Flat Fading and Frequency Selective Fading? Full categorised list of videos and PDF Summary Sheets: .