The IP Multimedia Subsystem (IMS) framework is a Next Generation Network (NGN) technology
which enables telecommunication operators to provide multimedia services over fixed …

… is the primary bottlenecN, our system provides a horizontally scale in/out of that component.
… alYBegain, IiP multimedia subsystem siP registration signaling evaluation for mission critical …

… , we believe that scalability and elasticity are compelling reasons for cloudifying IMS. …
elasticity issue. They enable an IMS which scales to some extent, but does not scale in an elastic …

The IP Multimedia System (IMS) is an important reference service delivery platform for next
generation networks and is considered as a de-facto standard for IP-based multimedia …

… Thus, elastic scalability is limited since it is difficult to scale in due to the granularity level (ie,
IMSVM) and stateful architecture. The authors do not provide performance metrics to …

… In this paper, we address the problem of dynamically scaling the request allocation rates
and … an elastic cost model in which the service capacity of a VM can be elastically scaled to …

… In fact, being P-CSCF the first contact point of an IMS-based architecture, it can be called
to manage bulk traffic by implementing dynamic scaling policies (not faced in this work) …

… Elastic resource scaling lets cloud systems meet application … , a system that automates
finegrained elastic resource scaling for multi-… CloudScale can resolve scaling conflicts between …

… An elastic infrastructure is able to automatically increase or reduce the number of
resources … For automatically enabling elasticity of network elements, a specific scale-in/scale-out …

… A well known chain-like framework is the IP Multimedia Subsystem (… scale completely
dominates another one, we can neglect the transient effects pertaining to the dominated time scale. …