Md. Arif Khan Lecturer (LV) Department of Electronics and Communication Engineering Khulna University of Engineering & Technology (KUET) Khulna -9203, Bangladesh. Phone: +880-41-7694671 Ext: 259 Cell: +880-1819-355440, Fax: +880-41-774403, Mail : [email protected] Website : www.kuet.ac.bd/ece/arif/