1. Internet of Things Thrust, The Hong Kong University of Science and Technology (Guangzhou), Guangzhou, Guangdong 510230, China
2. Department of Civil and Environmental Engineering, The Hong Kong University of Science and Technology, Hong Kong 999078, China
3. Institute for Advanced Study, The Hong Kong University of Science and Technology, Hong Kong 999078, China
4. Department of Electronic and Computer Engineering, The Hong Kong University of Science and Technology, Hong Kong 999078, China