1. Department Electrical and Computer Engineering; University of Alabama at Huntsville; Huntsville Alabama USA
2. Department Electrical and Computer Engineering; University of South Alabama; Mobile Alabama 36688 USA
3. Global Skyware, 1315 Outlet Center Drive; Smithfield North Carolina 27577 USA
4. Department of Electrical and Computer Engineering; University of Manitoba; Winnipeg Manibota R3T 5V6 Canada