1. Shenzhen International Graduate School, Tsinghua University, Shenzhen, China
2. Department of Electronic Engineering, Tsinghua University, Beijing, China
3. School of Microelectronics, Xidian University, Xi’an, China
4. Gaxtrem Technology Company Ltd., Suzhou, China
5. Intelligent RF Radio Laboratory (iRadio Lab), University of Calgary, Calgary, AB, Canada