1. Wireless Networks and Design Systems Group, Singapore University of Design and Technology, Tampines, Singapore
2. College of Electronics and Information Engineering, Shenzhen University, Shenzhen, China
3. Shanghai Key Laboratory of Multidimensional Information Processing, School of Communications and Electronics Engineering, East China Normal University, Shanghai, China
4. Zhejiang University/University of Illinois at Urbana–Champaign Institute, Zhejiang University, Haining, China