Chih-Heng Ke1, Ce-Kuen Shieh2, Wen-Shyang Hwang3 and Artur Ziviani4
1Department of Computer Science and Information Engineering
National Kinmen Institute of Technology
Kinmen, 892 Taiwan
2Department of Electrical Engineering
National Cheng Kung University
Tainan, 701 Taiwan
3Department of Electrical Engineering
National Kaohsiung University of Applied Sciences
Kaohsiung, 807 Taiwan
4National Laboratory for Scientific Computing (LNCC)
Petropolis, Rio de Janeiro, 25651-075 Brazil