Xiaoming Chen is a professor with the College of Information Science and Electronic Engineering, Zhejiang University, China. His research interests are in the areas of wireless communication and signal processing, mainly including fifth-generation (5G) key techniques, IoT theory and technique, and machine learning in communications. Prof. Chen has published more than 100 referred papers in IEEE journals and conferences. He is serving as an Editor of IEEE Transactions on Communications and IEEE Communications Letters.Qiao Qi is a master student with the College of Information Science and Electronic Engineering, Zhejiang University, China. Her research interests fall in Cellular IoT, over-air-computation, wireless power transfer. She has published multiple papers in IEEE journal and conferences.