Shih-Tsung Liang is currently an assistant professor with the department of computer science, University of Taipei, Taiwan. He received the B.S. degree in computer information science from the Tunghai University, Taiwan, in 1990, and the M.S. and Ph.D. degrees in computer science and information engineering from National Chiao Tung University, Taiwan, in 1992 and 1996, respectively. He joined the department of computer science and information engineering, Da-Yeh University, Taiwan, as an assistant professor in 1998. In 2004 he joined the Taipei Municipal Teachers College which is the predecessor of Taipei Municipal University of Education, Taiwan as an assistant professor. His current research interests include mobile communications, wireless networking, Internet technology, and network modeling and simulation.