On March 2021, Vortex organized a virtual talk with its associates, where Dr. Kai Li, a senior research scientist and project leader at CISTER, shared his work on Online and Privacy-preserving Data Capture in UAV-enabled Internet-of-Things. During the talk, Dr. Kai Li discussed the importance of reliable and secure data collection, where transmissions of the energy harvesting powered IoT nodes are encrypted and optimally scheduled, in the presence of online flight control of the UAV.

Nowadays IoT nodes aren’t available at the UAV, which makes online flight control and communication decision-making challenging in UAV-enabled IoT networks. Due to the broadcast nature of wireless channels, data communications between the UAV and the ground device are vulnerable to eavesdropping attacks. To find a solution for this problem, it was proposed a channel-based secret key generation to improve the consistency and security of the keys. To validate the design of the proposed key generation, a multi-hop UAVs-enabled IoT testbed was demonstrated based on Bluetooth low energy radio transceivers.


About Dr. Kai Li:

Dr. Kai Li is a Senior Research Scientist and Project Leader at Real-Time and Embedded Computing Systems Research Centre (CISTER) in Porto, Portugal. He is also a research fellow with Carnegie Mellon Portugal Research Program. From 2010 to 2011, he was a research assistant at Mobile Technologies Centre, in the Chinese University of Hong Kong. During 2012 and 2013, he was a visiting research assistant at ICT Centre, CSIRO, Australia. Between 2014 and 2016, Dr. Li was a postdoctoral research fellow at the SUTD-MIT International Design Centre, Singapore University of Technology and Design. His research interests include vehicular communications and security, resource allocation optimization, Cyber-Physical Systems, Internet of Things (IoT), human sensing systems, sensor networks and UAV networks.