IP Multimedia Subsystem (IMS) represents a crucial element for the convergence of
telecommunication systems heading towards 5G solutions. Actually, IMS offers a …

Nowadays, telecom providers may benefit from the flexibility offered by Network Function
Virtualization (NFV) paradigm that allows to decouple the service logic from the underlying …

Service provisioning mechanisms implemented across 5G infrastructures take broadly into
use the network service chain concept. Typically, it is coupled with Network Function …

The failure of a single network element composing a Service Function Chain (SFC)
unavoidably leads to some degradation in terms of availability (ability of guaranteeing …

As of today, telecommunication providers are exploiting the possibilities offered by the cloud
paradigm to efficiently decouple physical network resources, like hardware equipment …

The Network Function Virtualization (NFV) paradigm is giving impetus to novel
telecommunication infrastructures that readily benefit from virtualized environments. One of …

Today, the IP Multimedia Subsystem (IMS) is globally considered as the common service
platform for providing unified session control on top of various access network technologies …

Abstract The IP Multimedia Subsystem (IMS) defined by the 3GPP has been mainly
developed and deployed by telephony vendors on vendor-specific hardware. Recent …

The reputation of network providers strongly depends on their ability to guarantee high
performance levels of virtualized infrastructures, and to maintain strict Quality-of-Service …

In modern telecommunication networks, services are provided through Service Function
Chains (SFC), where network resources are implemented by leveraging virtualization and …