I am currently a second-year Ph.D. student at College of Information and Computer Sciences, University of Massachusetts Amherst under supervision of Prof. Jie Xiong.
My reserach topic is Visible Light Communication, especially for the side-channel of Visible Light Communication systems.
Email: minhaocui at cs.umass.edu
We utilize the leaked side channel signals of VLC to transmit additional data bits for communication. Without too much hardware modification and energy cost, we can double the data rate of the VLC systems with our novel design.
Mobicom 2021 paper
We utilize the side channel of VLC - a Radio Frequency (RF) channel created unintentionally during the transmission process of VLC - to break the VLC limitations:i) surrounding objects can easily block VLC links, and ii) intense ambient light can saturate the photodiodes of VLC receivers.
In this paper, for the first time, we show that VLC is not as secure as people thought: VLC can be sniffed through walls! The key principle behind this is that in VLC transmissions, a VLC transmitter not only emits visible light signals but also leaks out `side channel RF signals'.