Dr Aamir Shafi Room # A-205 School of Electrical Engineering and Computer Science (SEECS) National University of Sciences and Technology (NUST) Sector H-12, Islamabad Postal Code 44000 Tel: +92 51 9085 2167 Fax: 92-51 8317363 Email: aamirDOTshafiATseecsDOTeduDOTpk