1. School of Information Science and Technology, Northwest University, State key Laboratory of Networking and Switching Technology (Beijing University of Posts and Telecommunications), and Shaanxi International Joint Research Centre for the Battery-Free Internet of Things, China
2. China Unicom Software Research Institute, Xi’an, China
3. Computer Engineering, State University of New York at Stony Brook, NY, USA
4. College of Electrical Engineering, Zhejiang University, Hangzhou, China
5. Department of Electrical and Computer Engineering, University of Toronto, Toronto, Canada