Downlink Communication
Downlink communication, the transmission of data from a base station to user devices, is a critical area of research in wireless networks, aiming to improve spectral efficiency, reliability, and user fairness. Current research focuses on optimizing resource allocation and precoding techniques, often employing deep learning models like deep deterministic policy gradient (DDPG) and autoencoders, as well as advanced signal processing methods such as canonical correlation analysis, to address challenges like interference, channel estimation, and limited feedback. These advancements are crucial for enabling high-quality services in emerging 5G and beyond networks, particularly in scenarios with dense user deployments and resource-constrained devices.