Affiliation: | 1. ECE Department, The University of Alabama in Huntsville, 301 Sparkman Dr., Huntsville, AL 35899, U.S.A.;2. School of Computing and Mathematics, Georgia Southwestern State University, 800 GSW University Drive, Americus, GA 31709, U.S.A.;3. Department of Engineering, University of Leicester, University Road, Leicester LE1 7RH, U.K.;4. Department of Electronics, University of Kent, Canterbury, Kent CT2 7NZ, U.K. |