Fast blocking probability evaluation of end-to-end optical burst switching networks with non-uniform ON–OFF input traffic model

Vallejos, Reinaldo; Zapata, A.; Aravena, Marco

doi:10.1007/s11107-006-0037-y

Cited by 11 publications

(8 citation statements)

References 37 publications

(40 reference statements)

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“…The formulae described in this Appendix were extracted from [39]. The expressions for obtaining λ l (w), λ l and P l (w) in (18), needed in order to calculate the link blocking probability and the dimensioning of the link, are determined as follows.…”

Section: Discussionmentioning

confidence: 99%

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Joint routing and dimensioning of optical burst switching networks

et al. 2008

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Existing methods for handling routing and dimensioning in dynamic WDM networks solve the two problems separately. The main drawback of this approach is that a global minimum cost solution cannot be guaranteed. Given that wavelengths are costly resources, determining the minimum network cost is of fundamental importance. We propose an approach which jointly solves the routing and dimensioning problems in optical burst switching (OBS) networks, guaranteeing a target blocking per connection. The method finds the set of routes and the number of wavelengths per network link that minimise the total network cost. To accomplish this, an integer linear programming problem is solved. The proposed method was applied to ring networks, where the optimal solution achieves a reduction in the network cost of 10-40% (for traffic loads < 0.4, compared to solving both problems separately). In the case of mesh topologies, to reduce the computational complexity of the method, we applied a variation of it which achieves a local minimum. Even so, a reduction of 5-20% (for traffic loads < 0.4) in the network cost was obtained. This ability to lower network cost could make the proposed method the best choice to date for dynamic network operators.

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Section: Discussionmentioning

confidence: 99%

“…To calculate P * (w/T l ), taking into account the problems of stability of (23), the recurrent method proposed in [39] is used. UTFSM (1996) …”

Section: Discussionmentioning

confidence: 99%

Joint routing and dimensioning of optical burst switching networks

et al. 2008

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“…En [36] se realiza una evaluación de la probabilidad de bloqueo de forma rápida para las conexiones de extremo a extremo (end-to-end) en una red de conmutación de ráfagas ópticas (OBS, Op-ticalBurstSwitching), con un modelo de trá¿ co de entrada On/Off no uniforme se logra encontrar la e¿ ciencia del modelo como método para permitir el cálculo y el análisis óptimo en redes de gran tamaño, bajo tecnologías que basan la transmisión de información por medio óptico (Oct. 2006).…”

Section: Re-creacionesunclassified

“…A nivel de capa 1, se presenta el uso del mo-Ɣ delo On/Off, tanto en el trá¿ co como en tecnologías de acceso inalámbrico (Wireless) [38,44,52], Ad-Hoc [53], en CDMA (Code Division Multiple Access) [54,55] y redes de transmisión óptica como WDM [36].…”

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Aplicaciones del modelo On/Of al tráfico agregado en las redes de comunicaciones

León

Piedrahita

Salcedo

2012

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“…Let W l be the number of wavelengths of link l. Then, the blocking probability of link l is given by the following expression [22,23]:…”

Section: Link Blocking Evaluationmentioning

confidence: 99%

Fast and Effective Dimensioning Algorithm for End-to-End Optical Burst Switching Networks with ON-OFF Traffic Model

Vallejos

Zapata

Aravena

Optical Network Design and Modeling

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Abstract.A novel algorithm for fast dimensioning of end-to-end optical burst switching networks is proposed. The proposed method determines the number of wavelengths for each network link according to the traffic load, the routing algorithm and the required blocking probability per connection. The burst input traffic is modeled by an ON-OFF alternating renewal process, which is more realistic for OBS networks than the typically used Poisson model. Compared to the two most typically used dimensioning approaches, the proposed method results in significant lower wavelength requirements whilst achieving the same target blocking probability. Additionally, the proposed method takes less than one second to dimension the network links which makes it several orders of magnitude faster than the conventional simulation approach.

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Fast blocking probability evaluation of end-to-end optical burst switching networks with non-uniform ON–OFF input traffic model

Cited by 11 publications

References 37 publications

Joint routing and dimensioning of optical burst switching networks

Joint routing and dimensioning of optical burst switching networks

Aplicaciones del modelo On/Of al tráfico agregado en las redes de comunicaciones

Fast and Effective Dimensioning Algorithm for End-to-End Optical Burst Switching Networks with ON-OFF Traffic Model

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