Sai Ji received his B.S. degree from the Nanjing University of Information Science and Technology (NUIST), Nanjing, China, in 1999, and his M.S. degree from the Nanjing Aeronautics and Astronautics University (NUAA), Nanjing, China, in 2006. He works as a Professor at the NUIST and Suqian College. His research interests are in the areas of computer measurement and control, structural health monitoring, and WSNs. Ji has published more than 20 journal/conference papers. He is a Principal Investigator of three NSF projects.