In the framework of Network Function Virtualization (NFV), the reliability of Service Function
Chain (SFC),--an end-to-end service is presented by a chain of virtual network functions …

Availability events like hangs, failures, and interruptions are usually unexpected and
unpredictable. Due to the involving uncertainty, setting up a consolidated approach for …

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

Abstract Service-oriented architecture (SOA) has emerged as an approach to master
growing system complexity by proposing services as basic building elements of system …

The mission-critical web-based services deploying requires planning of the scalability,
reliability, and performance to ensure the constant availability of these services. Besides …

Abstract Lucent IP Multimedia Subsystem (IMS) architecture provides an open framework for
multimedia applications that support blended text, voice, and video services. Providing …

Network and Telecom operators are continuously embracing the adoption of Network
Function Virtualization (NFV) as a means to provide more agile, flexible and cost-efficient …

The design of cloud computing technologies need to guarantee high levels of availability
and for this reason there is a large interest in new fault tolerant techniques that are able to …

The infrastructure necessary to support convergent network services is increasingly more
complex than the usual communication networks. A network device must be able to quickly …

The promise of low costs, adaptation to customer load, and fast service roll-out has made
cloud infrastructures a primary choice for many service providers. So far, this has been …