VoIP reliability: a service provider's perspective

Johnson, Carolyn; Kogan, Yaakov; Levy, Yonatan; Saheban, F.; Tarapore, Percy

doi:10.1109/mcom.2004.1316530

Cited by 49 publications

(12 citation statements)

References 7 publications

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“…In a questionnaire, consortium partners were asked to express their opinion on equipment reliability for the components in our model. Only in some cases, the initial estimation could be based on literature sources [15][16][17][18][19][20]. After bringing all received data together, a reliability interval was obtained for all components and harmonized between all partners to obtain a consensus.…”

Section: Availability Measures In Relation With Routine Operation Andmentioning

confidence: 99%

Methodology and input availability parameters for calculating OpEx and CapEx costs for realistic network scenarios

et al. 2006

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The availability requirements for today's networks are very high. Higher availability often comes with a higher cost. We describe several steps required for estimating the costs of realistic network scenarios. Capital expenditures (CapEx) and operational expenditures (OpEx) are classified. An activity-based approach is used to quantify the cost of the event-driven operational processes such as repair and service provisioning. We discuss activity duration and availability parameters as required input data, which are necessary for calculating the processes' costs for realistic network scenarios. The relevant availability measures for an IP-over-Optical network are described using a triplet representation with optimistic, nominal, and conservative values. The model is applied to a reference German network scenario.

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Section: Availability Measures In Relation With Routine Operation Andmentioning

confidence: 99%

Methodology and input availability parameters for calculating OpEx and CapEx costs for realistic network scenarios

et al. 2006

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“…However, there are two factors that operators should consider to develop converged services. First, the high-performance that converged services (for example Telco services) require to be provided in real time and with a high degree of availability (Johnson, Kogan, Levy, Saheban, & Tarapore, 2004); and second, low Time to Market, in other words, the time it takes for a service to be developed, since it is planned until it is launched and offered for sale (Haran, 2011). Accordingly, one of the possible solutions to maintain high performance is the acquisition of Service Delivery Platforms (SDP) that allows the creation of new converged services with quality that an operator requires.…”

Section: Introductionmentioning

confidence: 99%

Automatic Orchestration of Converged Services on Jslee Environment

Ramirez

Corrales

2015

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A widely adopted solution in order to obtain a low Time to Market by a segment of Telecommunication operators is the use of the concept of service composition because their philosophy is to reuse software components previously implemented. The composition has two phases, the synthesis and orchestration, understanding the second one as a challenge to converged services because it requires extensive technical knowledge and experience. This article proposes a mechanism based on graphs and Petri Nets to automate the orchestration of services in converged JS-LEE environments, which operates at design time in order to not affect performance in the execution of composite services. The results demonstrate that the mechanism can transform an abstract process with 20 component services in an executable JSLEE service, without exceeding 500 ms. Keywords: Automatic Orchestration, JAIN SLEE, Service Composition. ResumenUna solución ampliamente adoptada para obtener un bajo Time to Market por parte de los operadores de Telecomunicaciones, es la utilización del concepto de composición de servicios ya que su filosofía es reutilizar componentes software previamente implementados. La composición tiene dos fases, la síntesis y la orquestación, siendo la segunda un reto en los servicios convergentes debido a que requiere amplio conocimiento técnico y experiencia. En este artículo se propone un mecanismo basado en Grafos y redes de Petri para automatizar la orquestación de servicios sobre entornos convergentes JSLEE, el cual funciona en tiempo de diseño con el propósito de no afectar el rendimiento en la ejecución del servicio compuesto. Los resultados demuestran que el mecanismo puede transformar un proceso abstracto con 20 servicios componentes, en un servicio ejecutable JSLEE, sin superar los 500 ms. Palabras clave: Composición de servicios, JAIN SLEE, Orquestación Automática.

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“…IP networks are relatively inexpensive to use. This makes it even more attractive for the service providers to try to offer new services on the existing network, thus avoiding expensive investment in new infrastructure (Davidson, 2006, Khasnabish, 2003and Johnson, 2004). …”

Section: Introductionmentioning

confidence: 99%

Evaluate Signals Transmission over Internet Protocol Networks

ALorf¹

2014

IOSRJEEE

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VoIP reliability: a service provider's perspective

Cited by 49 publications

References 7 publications

Methodology and input availability parameters for calculating OpEx and CapEx costs for realistic network scenarios

Methodology and input availability parameters for calculating OpEx and CapEx costs for realistic network scenarios

Automatic Orchestration of Converged Services on Jslee Environment

Evaluate Signals Transmission over Internet Protocol Networks

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