[Chen, Weimin; Wong, Kelvin K. L.] Hunan City Univ, Sch Informat & Elect, Yiyang 413000, Peoples R China.
[Fu, You-Lei; Xu, Wanni] Natl Taiwan Normal Univ, Coll Technol & Engn, Taipei 106, Taiwan.
[Fu, You-Lei; Xu, Wanni] Nanchang Inst Technol, Dept Comp Informat Engn, Nanchang 330044, Peoples R China.
[Xu, Huasen] Shanghai Normal Univ, Dept Civil Engn, Shanghai 201418, Peoples R China.
[Ayoub, Muhammad] Cent South Univ, Sch Comp Sci & Engn, Changsha 410083, Hunan, Peoples R China.