Smart Sensing and Mobile Computing Group

Welcome to the Smart Sensing and Mobile Computing (S2MC) Group@CityU. The S2MC is directed by Dr. Weitao Xu and is dedicated to the research and development of IoT technologies and applications. Our group focuses on a variety of research topics related to IoT, such as sensing, connectivity, efficiency, security and AIoT (AI+IoT).



  • 2022.2 Our paper entitled “i^2Key: A Cross-sensor Symmetric Key Generation System using Inertial Measurements and Inaudible Sound” has been accepted by IPSN 2022!
  • 2021.12 Our paper entitled “GASLA: Enhancing the Applicability of Sign Language Translation” has been accepted by INFOCOM 2022!
  • 2021.10 Dr. Weitao Xu received 2021 ACM SIGBED China Rasing Star Award!
  • 2021.10 Congrats to Tony, we received the 2021 Ubicomp CPD Workshop Best Paper Award!
  • 2021.5 Our paper entitled “No Need of Data Pre-processing: A General Framework for Radio-Based Device-Free Context Awareness” has been accepted by ACM Transactions on Internet of Things!
  • 2021.1 We have two papers accepted by IPSN 2021!
  • 2020.10 Our Paper “Simultaneous Energy Harvesting and Gait Recognition using Piezoelectric Energy Harvester” has been accepted by TMC (IF: 5.115)!
  • 2020.10 Our Survey “Key Generation for Internet of Things: A Contemporary Survey” has been accepted by CSUR (IF: 7.99)!
  • 2020.06 Our paper entitled “Nephalai: Towards LPWAN C-RAN with Physical Layer Compression” has been accepted by Mobicom 2020!
  • Our Openings!

    Always looking for self-motivated PhD students. For current available PhD positions in S2MC Lab. please visit Recruitment for more information.