His general research interests includes data communications, computer networking, and the next generation Internet. His recent research projects focus on Software-Defined Networking, Network Virtualization, Network-as-a-Service, and Unified Network and Cloud Service Provisioning. Dr. Duan has more than 100 publications, including books, book chapters, journal articles, and conference papers. He is on the editorial boards for multiple international research journals and has served on the technical program committees for numerous international conferences.