Performance analysis of multi-party conferencing in IMS using vacation queues

Mishra, Garima; Selvamuthu, Dharmaraja; Kar, Subrat

doi:10.1109/ants.2014.7057259

Cited by 4 publications

(2 citation statements)

References 13 publications

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“…In another track of works, a more explicit attention is paid to characterize the IMS framework by means of queueing theory models. Authors in [37] and [38] present valuable analyses of delay and bandwidth utilization, respectively. Both works focus on the features of single servers, without considering, as we do, the distinguished chain structure of IMS.…”

Section: Related Research and Contributionsmentioning

confidence: 99%

Statistical Assessment of IP Multimedia Subsystem in a Softwarized Environment: A Queueing Networks Approach

Mauro

Liotta

2019

IEEE Trans. Netw. Serv. Manage.

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The Next Generation 5G Networks can greatly benefit from the synergy between virtualization paradigms, such as the Network Function Virtualization (NFV), and service provisioning platforms such as the IP Multimedia Subsystem (IMS). The NFV concept is evolving towards a lightweight solution based on containers that, by contrast to classic virtual machines, do not carry a whole operating system and result in more efficient and scalable deployments. On the other hand, IMS has become an integral part of the 5G core network, for instance, to provide advanced services like Voice over LTE (VoLTE). In this paper we combine these virtualization and service provisioning concepts, deriving a containerized IMS infrastructure, dubbed cIMS, providing its assessment through statistical characterization and experimental measurements. Specifically, we: i) model cIMS through the queueing networks methodology to characterize the utilization of virtual resources under constrained conditions; ii) draw an extended version of the Pollaczek-Khinchin formula, which is useful to deal with bulk arrivals; iii) afford an optimization problem focused at maximizing the whole cIMS performance in the presence of capacity constraints, thus providing new means for the service provider to manage service level agreements (SLAs); iv) evaluate a range of cIMS scenarios, considering different queuing disciplines including also multiple job classes. An experimental testbed based on the open source platform Clearwater has been deployed to derive some realistic values of key parameters (e.g. arrival and service times).

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Section: Related Research and Contributionsmentioning

confidence: 99%

Statistical Assessment of IP Multimedia Subsystem in a Softwarized Environment: A Queueing Networks Approach

Mauro

Liotta

2019

IEEE Trans. Netw. Serv. Manage.

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“…SIP supports both centralized and decentralized frameworks of multi-party communication. Overview of the most recent researches done by Mishra in (Mishra, 2014) shows that distributed approach allows to enhance the conferencing server capacity but it has some limitations with full security and control over the complete network due to unavailability of central server; it increases signaling delay due to multiple functional entities participating in conference session setup. In centralized conferencing architecture (Tien, 2010), a single User Agent (UA) or focus has a direct relation with each participant.…”

Section: Introductionmentioning

confidence: 99%

On Analytical Modeling Of IMS Conferencing Server

Abaev¹,

Beschastny²,

Tsarev³

2016

ECMS 2016 Proceedings Edited by Thorsten Claus, Frank Herrmann, Michael Manitz, Oliver Rose

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The IP Multimedia Subsystem is an architectural framework for delivering multimedia services over an Internet Protocol (IP) network. Originally, it was specified for wireless networks, but has since evolved to incorporate fixed line access as well. It forms part of a Next Generation Network (NGN) which is defined as a packet-based network where the service functionality is independent of the underlying transport technologies. This allows new converged services to be implemented on top of an existing packet switched network. The centralized conferencing framework limits the ability to have large number of participants because of the overhead on the server. One of the possible efficient solution for increasing of server's performance is grouping meeting requests the same video conference and serving them at one time on an edge-proxy. The queuing model with batch exhaustive service and working vacations is constructed and analyzed. The stationary distribution and the formulas for main performance measurements are obtained. In addition, the optimization problem for increasing a server performance is formulated.

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Performance study on heterogeneous arrival of batch service for multiple working vacations queuing system with breakdowns in the busy period

2023

2023 First International Conference on Advances in Electrical, Electronics and Computational Intelligence (ICAEECI)

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Performance analysis of multi-party conferencing in IMS using vacation queues

Cited by 4 publications

References 13 publications

Statistical Assessment of IP Multimedia Subsystem in a Softwarized Environment: A Queueing Networks Approach

Statistical Assessment of IP Multimedia Subsystem in a Softwarized Environment: A Queueing Networks Approach

On Analytical Modeling Of IMS Conferencing Server

Performance study on heterogeneous arrival of batch service for multiple working vacations queuing system with breakdowns in the busy period

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