*Abstract:* 

     In order to understand how to operate the physical dynamics of cyber physical systems (CPSs), we study the control of entropy (or equivalently uncertainty) via communications in CPSs. We consider the controller as the Maxwell's demon that decimates the system entropy. Due to the second law of thermodynamics, the system entropy cannot be spontaneously decreased. Therefore, to reduce the system entropy, the controller needs external information communicated from sensors. The information efficiency of communications and the entropy propagation in networked CPS are studied. Meanwhile, we also studied the application of millimeter wave communication networks in 5G cellular systems in sensing and imaging. The blockage effect of millimeter wave is employed to detect moving objects and estimating the speed. Moreover, the massive MIMO and dense deployment of millimeter wave networks are used to carry out imaging for objects, as a bonus of 5G systems.

*Bio:* 

       Husheng Li received the BS and MS degrees in electronic engineering from Tsinghua University, Beijing, China, in 1998 and 2000, respectively, and the Ph.D. degree in electrical engineering from Princeton University, Princeton, NJ, in 2005. From 2005 to 2007, he worked as a senior engineer at Qualcomm Inc., San Diego, CA. In 2007, he joined the EECS department of the University of Tennessee, Knoxville, TN, as an assistant professor. He is promoted to associate professor in 2013. His research is mainly focused on statistical signal processing, wireless communications, networking, smart grid and game theory. Dr. Li is the recipient of the Best Paper Awards of EURASIP Journal of Wireless Communications and Networks, 2005, EURASIP Journal of Advances in Signal Processing, 2015, IEEE ICC, 2011 and IEEE SmartGridComm 2012, IEEE Globecom 2017, and the Best Demo Award of IEEE Globecom, 2010.