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T-NOVA: A marketplace for virtualized network functions
Network Functions Virtualization (NFV) is a concept, which has attracted significant attention as a promising approach towards the virtualization/“softwarisation” of network infrastructures. With theExpand
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A reputation-based trust mechanism for ad hoc networks
The main characteristics of ad hoc networks are the lack of predefined infrastructure and the dynamic topology. These characteristics present some new security vulnerabilities for this emergingExpand
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Detecting flooding attacks against IP Multimedia Subsystem (IMS) networks
The IP multimedia subsystem (IMS) is an open IP based service infrastructure that enables an easy deployment of new rich multimedia services mixing voice and data. The IMS is considered as a nextExpand
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SIP Spam Detection
The SIP protocol has been showing for the last few years a strong acceptance by the market. Through a large row of services, in particular VoIP calls and instant messaging (IM), SIP has becomeExpand
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SIP Service Providers and The Spam Problem
The Session Initiation Protocol (SIP) is used for managing multimedia sessions in the Internet. As an emerging standard gaining more and more acceptance within the IT community, SIP will probably beExpand
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A Theoretical Model of the Effects of Losses and Delays on the Performance of SIP
The session initiation protocol (SIP) is widely used for VoIP communication. Losses caused by network or server overload would cause retransmissions and delays in the session establishment and wouldExpand
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Intrusion Detection System for Denial-of-Service flooding attacks in SIP communication networks
Security threats to Voice-over IP (VoIP) or IP Multimedia Subsystem (IMS) networks are becoming a major concern as their popularity increases. New attacks are being developed that directly target theExpand
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EMYNOS: Next Generation Emergency Communication
Current emergency systems and 112 services are based on legacy telecommunication technologies, which cannot cope with IP-based services that European citizens use every day. Some of the relatedExpand
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The market for open source: An intelligent virtual open source marketplace
This paper describes the MARKOS (the MARKet for Open Source) European Project, a FP7-ICT-2011-8 STREP project, which aims to realize a service and an interactive application providing an integratedExpand
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