Learn about the fundamentals of Massive MIMO technology in this 32-minute lecture from NPTEL-NOC IITM. Discover why Massive MIMO is important and explore its key features including beamforming, spatial multiplexing, and null forming techniques. Understand how Massive MIMO systems work and their applications in modern wireless communications. The lecture also covers emerging technologies like Reconfigurable Intelligent Surfaces (RIS), RIS-aided wireless networks, and holographic beamforming approaches that are shaping the future of wireless communications.