Orchestration and Control in Software-Defined 5G Networks: Research Challenges

Table 3

Summary of main future research challenges in 5G orchestration and control.

5G Task	Challenges
SDN/NFV M&O	Complexity; Dependability and security; Multi-actor issues;
Network Slicing	Complexity; Dependability and security; Multi-actor issues; Slice isolation; Standardized architecture; Performance; Resource optimization; Slice management hierarchy;
Wireless Resource Allocation	User association; Power control; Channel selection; Caching; Impact of CRN and SDR; Dynamic management of the spectrum;
Network Monitoring	Measurements for troubleshooting; Performance metrics; User experience and profiling; Scalability; Programmable data plane;