Enhancing Intradomain Scalability of IMS-Based Services

Bellavista, Paolo; Corradi, Antonio

doi:10.1109/tpds.2012.312

Cited by 8 publications

(3 citation statements)

References 27 publications

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“…The proposed standard approach which consists of dynamically allocating pre-installed CSCFs and ASs to endusers has severe limitations. These limitations are now well documented in the literature [6,7]. They are largely due to the fact that SIP is a text based protocol.…”

Section: Cloudifyng the Ip Multimedia Subsystem: Why?mentioning

confidence: 99%

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Cloudifying the 3GPP IP Multimedia Subsystem: Why and How?

Glitho¹

2014

2014 6th International Conference on New Technologies, Mobility and Security (NTMS)

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The 3GPP IP Multimedia Subsystem (IMS) has been specified as the service delivery platform of 3G networks. It subsequently became the de facto service delivery platform of 4G networks. Cloud computing is an emerging paradigm with inherent benefits such as scalability, elasticity and easy deployment of new applications and services. Scalability and elasticity are currently among the major roadblocks to the wide scale deployment of IMS. Cloudifying IMS can help in removing these roadblocks. It will also certainly bring many other advantages. However, this cloudification is no easy task and is still in its infancy. This paper motivates the cloudification of IMS, critically review the architectures proposed so far, sketch a vision and discusses the related research challenges.

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Section: Cloudifyng the Ip Multimedia Subsystem: Why?mentioning

confidence: 99%

“…However, this scalability is too coarse grained because it remains at IMS functional entity level. Reference [7] proposes another approach. It focuses on intradomain scalability for ASs and uses the presence server as example.…”

Section: Cloudifyng the Ip Multimedia Subsystem: Why?mentioning

confidence: 99%

Cloudifying the 3GPP IP Multimedia Subsystem: Why and How?

Glitho¹

2014

2014 6th International Conference on New Technologies, Mobility and Security (NTMS)

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“…Until very recently, the deployment of a VNF was still executed on a per node basis, thus providing coarse scalability and limited elasticity [4]. The problems associated with such coarse scalability are well covered in [5] and the general problem of scaling the IMS [6] is considered in [4] and [7]. Prior solutions focused on resource over-provisioning to solve scalability issues leading to poor resource utilization derived from scaling on a per-node basis.…”

Section: Introductionmentioning

confidence: 99%

Hyper Heterogeneous Cloud-Based IMS Software Architecture: A Proof-of-Concept and Empirical Analysis

Potvin

Gamardo

Nguyen³

et al. 2016

Smart City 360°

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Abstract. The IP Multimedia Subsystem (IMS) defined by the 3GPP has been mainly developed and deployed by telephony vendors on vendor-specific hardware. Recent advances in Network Function Virtualisation (NFV) technology paved the way for virtualized hardware and telephony function elasticity. As such, Telecom vendors have started to embrace the cloud as a deployment platform, usually selecting a privileged virtualization platform. Operators would like to deploy telecom functionality on their already existing IT cloud platforms. Achieving such flexibility would require the telecom vendors to adopt a software architecture allowing deployment on many cloud platforms or even heterogeneous cloud platforms. We propose a distributed software architecture enabling the deployment of a single software version on multiple cloud platforms thus allowing for a solution-based deployment. We also present a prototype we developed to study the characteristics of this architecture.

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