مرکز منطقه ای اطلاع رسانی علوم و فناوری Journal of Information Systems and Telecommunication (JIST) 2322-1437 14 53 2026 5 30 Re-CAC: A Re-Engineered Call Admission Control for LTE Downlink Networks Using Stepwise Bandwidth Degradation Concept en Vitalis Onyeke University of Nigeria, Nsukka Udora Nwawelu University of Nigeria, Nsukka Bonaventure Ekengwu University of Nigeria, Nsukka Nnaemeka Asiegbu University of Nigeria, Nsukka Benjamin Ezurike Alex Ekwueme Federal University, Ndufu-Alike Dumtochukwu Oyeka University of Nigeria, Nsukka Chukwudi Chukwudozie University of Nigeria, Nsukka Chimdalu Okide University of Nigeria, Nsukka 2024 9 24 Call Admission Control Long Term Evolution Bandwidth Degradation QoS RT and NRT Calls http://jist.ir/ar/Article/Download/48095