IEEE TCCN Special Section Editorial: Machine Learning and Artificial Intelligence for the Physical Layer

We are delighted to introduce this special section of the IEEE TRANSACTIONS ON COGNITIVE COMMUNICATIONS AND NETWORKING (TCCN), which aims at exploring recent advances and addressing practical challenges in the applications of machine learning (ML) and artificial intelligence (AI) for physical layer design and optimization. We have received a total number of 36 submissions, and after a rigorous review process, 12 articles have been selected for publication, which are briefly discussed as follows.