Arthur M. D. Shr1,2, Alan Liu1 and Peter P. Chen2
1Department of Electrical Engineering and Center for Telecommunication Research
National Chung Cheng University
Chiayi, 621 Taiwan
E-mail: arthurshr@gmail.com; aliu@ee.ccu.edu.tw
2Department of Computer Science
Louisiana State University
Baton Rouge, LA 70803, U.S.A.
E-mail: {mshr1; pchen}@lsu.edu