Spectrum Efficiency

Spectrum efficiency, the effective utilization of available radio frequencies, is a critical research area aiming to maximize data transmission within limited bandwidth. Current research focuses on optimizing spectrum allocation through techniques like deep reinforcement learning (e.g., soft actor-critic), graph neural networks for collaborative sensing in multi-satellite systems, and deep learning-based channel estimation for massive MIMO. These advancements are improving spectrum sharing in diverse applications, including Internet of Vehicles, 6G satellite networks, and cell-free massive MIMO systems, leading to more efficient and robust wireless communication.