6 October 2016

Speaker:  Dr Guoliang Xing

Associate Professor

Michigan State University

Dr. Xing described his recent work on mobile systems for biological rhythm monitoring and Bluetooth sniffing.Biological rhythms play a central role in maintaining our daily productivity and well-being, and can be found in almost every essential human body function,including sleep/wakefulness, respiration, walking/running, feeding, etc. Dr Xing described two novel mobile systems for personalized, in-place monitoring o fimportant human biological rhythms, including sleep quality and running rhythm.His approach integrated novel sensing algorithms and psychological/physiological models to achieve high-fidelity monitoring performance on off-the-shelf mobile devices.

In the second part of the talk, Dr Xing presented his recent work on Bluetooth sniffing. Bluetooth has enjoyed an unprecedented penetration rate in mobile devices. With the prevalence of personal Bluetooth devices, potential breach of user privacy has been an increasing concern. To date, sniffing Bluetooth traffic has been widely considered an extremely intricate task due to Bluetooth’s indiscoverable mode,vendor-dependent adaptive hopping behavior, and the interference in the open 2.4GHz band. Dr. Xing presented Blue Ear – the first practical Bluetooth traffic sniffer. Blue Ear features a novel dual-radio architecture where two Bluetooth-compliant radios coordinate with each other on learning the hopping sequence of indiscoverable Bluetooth networks.

Last, Dr Xing brieflydiscussed several other projects on Cyber-Physical System (CPS), includingreal-time volcano monitoring, aquatic monitoring using smartphone-based roboticfish, and data center thermal management.