[Fei Ge; Wei Zhang; Ming Liu] Computer Science Department, Central China Normal University, Wuhan, Hubei, P. R. China
Discipline of ICT, School of Technology, Environments and Design, University of Tasmania, Hobart, TAS, Australia
Computer Science Department, Huazhong Normal University, Wuhan, Hubei, P. R. China
[Xun Gao] Electronic Engineering Department, Wuhan University, Wuhan, Hubei, P. R. China
[Juan Luo] College of Computer Science and Electronic Engineering, Hunan University, Changsha, Hunan, P. R. China