1. University of Nevada, Reno,Dept. of Electrical and Biomedical Engineering,Reno,USA
2. Texas A&M University-Kingsville,Dept. of Electrical Engineering and Computer Science,Kingsville,USA
3. University of Houston-Clear Lake,Dept. of Computer Engineering,Houston,USA
4. North Carolina A&T State University,Dept. of Computer Science,Greensboro,NC,USA