State of Art: Vertical Handover Decision Schemes in Next-Generation Wireless Network

E. M. Malathy,Muthuswamy Vijayalakshmi

Table 1 Comparison of various methods for vertical handover

existing vertical handover decision schemes advantage(s) disadvantage(s) RSS-based schemes simple design increased unnecessary handovers increased ping-pong effect single metric bandwidth-based good throughput performance inefficient bandwidth computation schemes good network selection cost function less call drop probability increased system overload reduced ping-pong effect context-aware schemes very less call-drop blocking complex design leads to implementation issues good context collection multiple metric media-independent good network selection high-signaling overheads handover reduced latency increased resources consumption MADM schemes better decision on dynamic parameters FL user-satisfied handovers performance dependence on traffic classheavy complex design computation reduced handover delay higher processing time NNs successful handovers heavy complex design reduced handover delay reduced handover decision delay centralized controlheavy complex design multi-attribute+computation MADM-AI precise data for handover decision terminal-based decision huge training process MADM-context-aware improved QoS for user unreliable handover decision at high speed schemes terminal-based decision