1. Department of Telecommunication Engineering; University of Engineering and Technology, Taxila; Taxila Pakistan
2. School of Electrical Engineering and Computer Science; National University of Sciences and Technology; Islamabad Pakistan
3. Department of Electrical Engineering; COMSATS Institute of Information Technology-Wah; Wah Cantt Pakistan
4. Instituto Nacional de Telecomunicações; Santa Rita do Sapucaí Brazil
5. Institute of Telecommunications; University of Beira interior; Covilhã Portugal
6. ITMO University; Saint Petersburg Russia
7. University of Fortaleza; Fortaleza Brazil