Using QoE Metric as a Decision Criterion in Multimedia Heterogeneous Network Optimization: Challenges and Research Perspectives

Table 3

Description of the major challenges linked to mobility.

Major challenges	Description
Handover Transparent	Ensure smooth and seamless transitions when moving from one network to another to avoid service interruptions and QoE disruptions
Handover decisions	Make handover decisions based on factors such as signal quality, network load, and user preferences while minimizing QoE impacts
Internetwork handover	Effectively manage handovers between different technologies and network types, such as switching from WiFi to cellular networks, while maintaining optimal QoE
Latency management	Reduce latency during handover transitions to avoid any user-perceivable delay
Energy optimization	Perform handovers in a way that minimizes the power consumption of mobile devices while maintaining satisfactory QoE