TY - JOUR AU - Nwawelu , Udora AU - , AU - , AU - , AU - , AU - , AU - , AU - , TI - Re-CAC: A Re-Engineered Call Admission Control for LTE Downlink Networks Using Stepwise Bandwidth Degradation Concept JO - Journal of Information Systems and Telecommunication (JIST) VL - 14 IS - 53 SP - 16 EP - 27 PY - 2026 DO - ER -