فهرس المقالات Hussein Shakir Diwan Al-Khulaifawi المقاله 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) , العدد 4 , السنة 13 , پاییز 2025