Optimal availability and security for IMS-based VoIP networks

Pant, Himanshu; McGee, Andrew R.; Chandrashekhar, Uma; Richman, Steven H.

doi:10.1002/bltj.20190

Cited by 15 publications

(5 citation statements)

References 4 publications

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“…In addition, IMS nodes have typically different performance levels and several failure and repair modes with various effects on the entire signaling network performance. Hence, a reliability/performance model should consider this distributed nature of call control functionalities, influenced by every single node behavior and the variety of failures, ranging from accidental failures [15] of software modules and/or hardware equipments to man-made faults due to malicious users activity [16], [17], [18].…”

Section: The Ip Multimedia Subsystemmentioning

confidence: 99%

Performance Evaluation of IMS-Based Core Networks in Presence of Failures

Guida

Longo

Postiglione

2010

2010 IEEE Global Telecommunications Conference GLOBECOM 2010

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In order to evaluate performance of mobile networks, it is necessary to consider the occurrence of random failures causing performance degradation and the consequent repair actions. This approach is especially suitable for next generation networks based on the Third Generation Partnership Project (3GPP) IP Multimedia Subsystem (IMS), as a consequence of the very high Quality of Service levels required by telecommunication operators' subscribers. IMS core network signalling servers can be modeled as multi-state elements, where server states correspond to different performance levels. The number of sessions handled by a single server per time unit is one of the performance figure that can be considered. Given a demand profile, some redundancy techniques must be adopted to meet the typical requirements for a telecommunication network in terms of service availability and, in this paper, a redundancy optimization problem is solved by using a Universal Generating Function approach.

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Section: The Ip Multimedia Subsystemmentioning

confidence: 99%

Performance Evaluation of IMS-Based Core Networks in Presence of Failures

Guida

Longo

Postiglione

2010

2010 IEEE Global Telecommunications Conference GLOBECOM 2010

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“…Given the complexity of NGN networks arising from their distributed nature and the potential multivendor mismatch of products in an NGN solution, the human factors-maintainability and serviceability of NGN/IMS networks-will become a significant issue for service reliability. Another example of a nontraditional failure source is cyber-terrorism because NGNs rely on new technologies and protocols that are generally IP-based and more prone to man-made threats [4,14]. Each non-traditional failure source impacts service reliability and hence this impact needs to be accounted for in order to understand the reliability.…”

Section: Introductionmentioning

confidence: 99%

Reliability of next-generation networks with a focus on IMS architecture

Pant¹,

Chu²,

Richman³

et al. 2008

Bell Labs Tech. J.

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Next-generation networks (NGNs g., alternating current (AC) power and non-central office deployment), is considered in the design for network reliability. The paper includes examples from implementation of the methodology to IP Multimedia Systems (IMS) networks. © 2008 Alcatel-Lucent.of performance [9] and reliability [10] and systems which could measure them [15]. Then, even within the new packet networks, additional evolution was necessary, for example, to design multiprotocol label switching (MPLS) IP networks. In every case, there were questions about how reliable the networks could be, given that they embodied new hardware and software which did not enjoy the longer operational, development, and deployment experiences of their predecessor "legacy" technology networks. In the early stages of new hardware development, there is always a high degree of "infant mortality" [17]. Similarly, questions regarding reliability exist today for the nextgeneration networks [1,11].

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“…organization and In terms of service, we offer several internet services We have created the SaaS level, which is for the service user Three to provide different customized services are virtualized into six, security is in place Concerns. [13] This fact makes IMS networks vulnerable to specific security weaknesses associated with other IP networks and MS protocols such as SIP. The key used by the client to establish a session with MS Core This is the last protocol.…”

Section: Introductionmentioning

confidence: 99%

Optimum availability and security for IMS-based VOIP networks using weight product method

2021

rmc

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IMS is a set of specifications for delivering multimedia services over the IP protocol. It makes it possible to integrate all kinds of services like voice, multimedia and data on a platform accessible through any internet connection. Intramuscular stimulation (IMS) is a technique used by physical therapists that have completed IMS certification to release or stretch muscles that may be causing chronic musculoskeletal or neuropathic pain. Turn off the device. Volume Up key and Home key Press and hold, then press and hold the Power key. When the Android logo is displayed, press all keys to let go The IP Multimedia Subsystem or IMS stands for IP Voice, video, and text messaging over networks for providing multimedia communication services such as A standards-based architectural framework. As you know all IMS messages are carried over TCP or UDP sockets in the form of IP data. Therefore, IP level security can be used for IMS/SIP transactions if required. To enable IP level security, we need to go through the SA process and exchange key exchange process. Internet Mail Service (IMS) is internal to Compaq Messaging and is an important part of the infrastructure. Compaq has at least three Exchange server companies There are two companies that support large users And third company houses the servers and global sites of Compaq Services consulting groups. The weighted product (WP) method is a part of the decision-making model by multiplying the attribute evaluation. Weights for attributes are for attributes is positive in the multiplicative function between Acts as ranking, while attribute rating Cost acts as a negative ranking for the attribute.

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Optimal availability and security for IMS-based VoIP networks

Cited by 15 publications

References 4 publications

Performance Evaluation of IMS-Based Core Networks in Presence of Failures

Performance Evaluation of IMS-Based Core Networks in Presence of Failures

Reliability of next-generation networks with a focus on IMS architecture

Optimum availability and security for IMS-based VOIP networks using weight product method

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