On the Applications of Efficient NFV Management Towards 5G Networking

Abstract

The paper leverages the emerging paradigm of Network Function Virtualization (NFV) in an attempt to outline from the network management point of view the current trends on the road to 5G region. To that end, relevant architectural frameworks and concepts have been presented and the anticipated network densification through the notion of Edge Cloud has been discussed. Within this context, added value assets that can be generated by following some of the analysed principles have been also included. Finally, open issues and challenges with respect to the NFV functionalities and their materialization according to 5G requirements have been elaborated and some key new concepts about network and small cell virtualization have been introduced.

Toward Haptic Communications Over the 5G Tactile Internet

“…• Network Function Virtualization (NFV): The virtualization and softwarization of network functions drastically decreases the dependency on hardware and therefore increases the scalability and reliability of the network. It is also easier to share resources among different network functions and also transfer network functions across the network in order to optimize a service's performance in terms of latency [221].…”

Softwarization and virtualization in 5G mobile networks: Benefits, trends and challenges

“…As seen in Fig. 2, some network functionalities can run on edge clouds [104], to achieve a higher flexibility and scalability. This architecture allows functions to be instantiatied at the edge for services dealing with delay-sensitive applications or for scenarios requiring additional functionalities (e.g., the support of non-3GPP access points).…”

“…By extending the works in [75], [4], [119], [120], a well-designed cost model should consider as input the target QoS requirements (in terms of data rate, latency, jitter, mobility, priority, etc.) • Full Cloud Migration [75], [49], [98], [99], [17], [100], [101] • C-plane Cloud Migration [75], [3] • Scenario-based Migration [75], [102], [103], [104] VNF • SDN realization of SGW and PGW [75], [105] • Mobility management [110], [112], [113], [77] • Grouping EPC entities [29] • Caching as a Service [118] SGW/PGW placement • Cost, overhead, end-to-end delay [75] • QoS and mobility anchor gateway [119] • Load and end-to-end delay [120] Mobile virtual networks…”

CDS-MEC: NFV/SDN-based Application Management for MEC in 5G Systems

“…Claudia 2 can instantiate services in private (i.e., OpenNebula, Eucalyptus, vSphere) and public clouds (Amazon, Flexiscale, etc.). The EU FP7 T-NOVA project [9] implements an orchestration platform for provisioning, configuration, monitoring, and optimization of Network Function-as-a-Service over virtualized infrastructures. The orchestration aspects covered by T-NOVA primarily include service chain mapping, service chaining and provisioning.…”