فهرست مقالات Hussein Shakir Diwan Al-Khulaifawi مقاله 1 - Optimally DBS Placement In 6G Communication Networks Using Improved Gray Wolf Optimization Algorithm to Enhance Network Energy Efficiency Hussein Shakir Diwan Al-Khulaifawi Mahdi Nangir Journal of Information Systems and Telecommunication (JIST) , شماره 4 , سال 13 , پاییز 2025