Proceedings ArticleDOI
Reliability and survivability methodologies for next generation networks
Maurizio Guida,Maurizio Longo,Fabio Postiglione +2 more
- pp 326-331
TLDR
Some reliability and availability methodologies suitable to characterize telecommunication networks behavior, in particular, in the presence random failures of network elements, based on the IP Multimedia Subsystem are reviewed.Abstract:
This paper aims to review some reliability and availability methodologies suitable to characterize telecommunication networks behavior, in particular, in the presence random failures of network elements. This approach is becoming more and more relevant to assess the Quality of Service offered by a telecom operator to its subscribers, also known as performability. In order to clarify this approaches, we present some examples related to next generation networks based on the IP Multimedia Subsystem. Some notions about the emerging requirements of network survivability are given.read more
Citations
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Journal ArticleDOI
Semi-Markov models for performance evaluation of failure-prone IP multimedia subsystem core networks
TL;DR: This article provides an evaluation of IMS signalling network performance in long runs in terms of two metrics adopted in the practice, such as the number of call set-up sessions that the network can manage at the same time and the callSet-up delay.
Proceedings ArticleDOI
Unexpected bi-directional operation of Phase-Shift Full-Bridge Converter in parallel operation system
TL;DR: In this article, the effects of unexpected bi-directional operation of Phase-Shift Full-Bridge Converter in cold redundancy (CR) in parallel operation system is discussed. But, because of unexpected backward operation, the voltage stress of primary switches is severely increased.
Proceedings ArticleDOI
Dependability of a Network Monitoring Hardware
TL;DR: A highly dependable networking hardware architecture is presented and its application in a monitoring example is demonstrated and a detailed dependability analysis is provided for the hardware used in monitoring application.
Semi-Markov Models for Performance Evaluation of Telecommunication Networks in the Presence of Failures
TL;DR: This paper evaluates IMS signalling network performance in terms of the number of sessions handled by the network per time unit, by adopting a semi-Markov model for the IMS servers, which allows as well for non-exponential probability distributions of sojourn times, as often observed in practical network scenarios.
References
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RTP: A Transport Protocol for Real-Time Applications
TL;DR: RTP provides end-to-end network transport functions suitable for applications transmitting real-time data over multicast or unicast network services and is augmented by a control protocol (RTCP) to allow monitoring of the data delivery in a manner scalable to large multicast networks.
Journal ArticleDOI
Basic concepts and taxonomy of dependable and secure computing
TL;DR: The aim is to explicate a set of general concepts, of relevance across a wide range of situations and, therefore, helping communication and cooperation among a number of scientific and technical communities, including ones that are concentrating on particular types of system, of system failures, or of causes of systems failures.
Basic Concepts and Taxonomy of Dependable and Secure Computing
TL;DR: In this paper, the main definitions relating to dependability, a generic concept including a special case of such attributes as reliability, availability, safety, integrity, maintainability, etc.
Diameter Base Protocol
TL;DR: The Diameter base protocol is intended to provide an Authentication, Authorization and Accounting framework for applications such as network access or IP mobility, and needs to be supported by all Diameter implementations.
Journal ArticleDOI
Always best connected
E. Gustafsson,A. Jonsson +1 more
TL;DR: The concept of being always best connected is described, the user experience and business relationships in an ABC environment are discussed, and the different aspects of an ABC solution that will broaden the technology and business base of 3G are outlined.