فهرس المقالات عطاالله ابراهیم زاده المقاله 1 - Lifetime Maximization by Dynamic Threshold and Sensor Selection in Multi-channel Cognitive Sensor Network 10.7508/jist.2017.20.003 Asma Bagheri Ataollah Ebrahimzadeh مریم نجیمی Journal of Information Systems and Telecommunication (JIST) , العدد 4 , السنة 5 , پاییز 2017