A Review on Precoding Techniques for Massive MIMO-Based Wireless Communication

To enhance the performance of fifth-generation (5G) or beyond 5G communication, Massive Multiple Input Multiple Output (mMIMO) technology plays a crucial role. The precoding technique is essential in optimizing the transmission process by mitigating interference and improving the overall spectral efficiency. The paper discusses various precoding strategies, including zero-forcing, minimum mean square error, maximum ratio transmission, and other advanced techniques tailored for maMIMO environments. Furthermore, the impact of channel state information (CSI) on precoding design is explored, considering both idealistic scenarios and practical channel estimation challenges. The objective is to provide researchers, engineers, and practitioners with a comprehensive understanding of the state-of-the-art precoding techniques in mMIMO, their advantages, limitations, and potential applications in future communication systems. Through this exploration, the paper gives a thorough study of precoding techniques and mMIMO technology for next-generation communication.