Integrating reliability and quality of service in networks with switched virtual circuits

Sansò, Brunilde; Girard, André; Mobiot, F.

doi:10.1016/s0305-0548(03)00201-6

Cited by 11 publications

(2 citation statements)

References 28 publications

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“…Newer network models with the required level of descriptive flexibility and resolving power are available from engineering fields concerned with circuit-switched network design and analysis (Barker et al, 2002;Sansò et al, 2005) and with the modelling of nonlinear circuits (Demir and Uçar, 2003). These models are too complex for day-to-day application and management of networks of people, but key features from these models and from circuit theory can be usefully applied, by analogy, to networks of people.…”

Section: Introductionmentioning

confidence: 99%

A probabilistic switch model of information flow in social networks: application of virtual circuits to organisational design

Barnard¹,

Kapeleris²,

Hine³

2006

IJTTC

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Network building and exchange of information by people within networks is crucial to the innovation process. Contrary to older models, in social networks the flow of information is noncontinuous and nonlinear. There are critical barriers to information flow that operate in a probabilistic manner. New models and new analytic tools are needed for these systems. This paper introduces the concept of virtual circuits and draws on recent concepts of network modelling and design to introduce a probabilistic switch theory that can be described using matrices. It can be used to model multistep information flow between people within organisational networks, to provide formal definitions of efficient and balanced networks and to describe distortion of information as it passes along human communication channels. The concept of multi-dimensional information space arises naturally from the use of matrices. The theory and the use of serial diagonal matrices have applications to organisational design and to the modelling of other systems. It is hypothesised that opinion leaders or creative individuals are more likely to emerge at information-rich nodes in networks. A mathematical definition of such nodes is developed and it does not invariably correspond with centrality as defined by early work on networks. A probabilistic switch model of information flow in social networks 5Reference to this paper should be made as follows: Barnard, R., Kapeleris, J. and Hine, D. (2006) 'A probabilistic switch model of information flow in social networks: application of virtual circuits to organisational design', Int. at the University of California and an NHMRC R.D. Wright fellowship at the University of Queensland. He has had a stint in industry (as nucleic acids programme director at Panbio Ltd., Brisbane) and is involved in basic and applied research in academic and several industry collaborative projects in the fields of antibody engineering, infectious disease diagnosis and cancer treatment. He has filed several patents in the field of diagnostics and published more than 75 refereed papers in molecular endocrinology, molecular biology, applications of mathematics in biology and in knowledge and innovation management.John Kapeleris, holds the position of Director for Commercialisation at the Australian Institute for Commercialisation, and is adjunct Associate Professor in the Biotechnology Programme at the University of Queensland. He received his Doctorate of Biotechnology from the University of Queensland. In his early career, he worked for Queensland Medical Laboratories as Scientist both in diagnostic serology and product development.He joined Panbio Pty Ltd. in 1991 as R&D Manager and was responsible for establishing the company's R&D systems and the development of a number of products that achieved international market success. Kapeleris has also held positions as Quality Manager, Business Development Manager, Marketing Manager, VP Sales and Marketing and Deputy CEO. His interests include creativity and innovation and how this is l...

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Section: Introductionmentioning

confidence: 99%

A probabilistic switch model of information flow in social networks: application of virtual circuits to organisational design

Barnard¹,

Kapeleris²,

Hine³

2006

IJTTC

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“…Each traffic class will be offered an adequate level of optical protection according to its priority. The results of [2], [1] have shown that DiffServ can provide good reliability in certain failure situations but fell short in others where DiffProtect took the lead. Given that optical protection cannot be completely replaced by transport mechanisms such as DiffServ, we examine how much optical protection can be replaced by transport mechanisms while keeping the same performance in case of failure.…”

Section: Introductionmentioning

confidence: 99%

Network reliability under mixed IP and optical protection

Awad

Sansò

DRCN 2005). Proceedings.5th International Workshop on Design of Reliable Communication Networks, 2005.

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In this article, we extend previous work showing that DiffServ can provide some QoS guarantees to both realtime and non real-time traffic in the event of the failure of an optical component. Even though DiffServ cannot totally replace optical protection in a network, it might be able to do so to some degree. In this paper, we study a 4-node linear topology which can be protected by DiffServ, DiffProtect or even a combination of both (MixProtect). We evaluate the performance of all protection combinations which enables us to study the extent to which we could replace optical protection by DiffServ in a particular network. Results have shown that replacing optical protection by DiffServ cannot be done randomly, the number and positions of DiffServ protected links versus DiffProtect's must be carefully chosen in order to guarantee maximum performance to all traffic types.

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Recurrent Method for Blocking Probability Calculation in Multi-service Switching Networks with BPP Traffic

Głąbowski

2008

Computer Performance Engineering

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Integrating reliability and quality of service in networks with switched virtual circuits

Cited by 11 publications

References 28 publications

A probabilistic switch model of information flow in social networks: application of virtual circuits to organisational design

A probabilistic switch model of information flow in social networks: application of virtual circuits to organisational design

Network reliability under mixed IP and optical protection

Recurrent Method for Blocking Probability Calculation in Multi-service Switching Networks with BPP Traffic

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