Prof. Li’s primary research interests are in general areas of Wireless and Cyber Security, with current emphases on wireless network modeling and optimization, wireless and spectrum security, privacy-preserving data analytics, and cyber-physical system security. He is particularly interested in exploring new performance limits and increasing security of wireless networks by exploiting advances at the physical layer, and designing novel cryptographic protocols to protect people’s privacy in the big data era. He is always interested in problems that have potential real-world impact, solutions that are simple but based on solid mathematical foundations, and tries to bridge theory and practice.