1. Department of Electrical, IT & Computer Sciences, Islamic Azad University, Qazvin Branch, Qazvin, Iran
2. National Advanced IPv6 Center, Universiti Sains Malaysia, 11800 Penang, Malaysia
3. School of Computer Sciences, Universiti Sains Malaysia (USM), 11800 Penang, Malaysia
4. Central Bank of the Islamic Republic of Iran, Tehran, Iran