Li Chunlin was born in 1974. She received Ph.D degree in 2003, now is an associate professor of Computer Science in Wuhan University of Technology. Her research interests include computational grid and mobile agent. She has published over 15 papers in international journals. Feng Meilai was born in 1976. Now he is a graduate student in Wuhan University of Technology. His research interest includes grid QoS scheduling and grid simulation. Li Layuan was born in 1946 currently is a Professor and Ph.D. tutor of Computer Science, and Editor in Chief of the Journal of WUT. His research interests include high speed computer networks, protocol engineering and image processing.