An efficient method to estimate transponder count in multi-layer transport networks

Bodamer, Stefan; Späth, Jan; Glingener, C.

doi:10.1109/glocom.2004.1378289

Cited by 8 publications

(5 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It derives principal results for given virtual and physical topologies, and traffic demands. This analysis extends the study of different IP/SDH/WDM network architectures under static client layer traffic demands in [BSG04] by incorporating the effect of traffic dynamics.…”

Section: Capacity Analysis Of Client and Server Layer Resourcesmentioning

confidence: 90%

See 1 more Smart Citation

Novel Network Architecture for Optical Burst Transport

Gauger¹

2009

PIK - Praxis Der Informationsverarbeitung Und Kommunikation

View full text Add to dashboard Cite

SummaryTransport networks form the backbone of communication networks by cost-efficiently offering huge bandwidth and by guaranteeing a high service quality and availability. These requirements can best be met by using optical communication technologies. Currently, wavelength-switching is the most prominent network technology employing optical fiber communication and wavelength division multiplexing. It transports data in circuit-switched wavelength channels, the so-called lightpaths. While for years progress in optical networks has been defined by ever increasing transmission bit-rates, higher flexibility and manageability as well as multi-service and multi-layer integration are equally important criteria today. Accounting for these trends, optical burst switching (OBS) has been proposed as a highly dynamic optical network architecture. It offers fine-granular transport of different packet-switched services and applies statistical multiplexing directly in the optical layer.This thesis presents the design, modeling, and evaluation of the optical burst transport network architecture (OBTN). The architecture is motivated by the need for flexible, scalable, and cost-efficient transport in next generation networks. In addition, it is stimulated by the research activities towards highly dynamic optical network infrastructures.OBTN defines a network architecture to transport and switch optical burst data in a core network. The design objectives for the OBTN architecture are (i) an overall high quality of service, (ii) a network design allowing for cost-efficiency and scalability, and (iii) a network evolution perspective based on the current wavelength-switched networks. These objectives are achieved by combining selected concepts, architectures, and strategies of optical burst and optical packet switching as well as of multi-layer traffic engineering.In order to provide the background information for the design of OBTN, Chapter 2 introduces the general characteristics, requirements, and trends for next generation transport networks. Also, it discusses the concept of layering in next generation networks and its application in layer networks for the virtualization of transport resources. Consequently, virtual topology design and dimensioning are analyzed to quantify the trade-offs regarding connectivity and resource requirements. Chapter 2 also reviews the fundamental technologies as well as currently emerging data and control plane architectures for optical transport networks. This presentation is then extended towards a long-term perspective. It describes architectural constraints and classification criteria for highly dynamic optical network architectures. These criteria are used to characterize the fast optical circuit switching, optical burst switching, and optical packet switching architectures. Then, hybrid optical network architectures are discussed as a framework to combine wavelength-switched and optical burst/packet-switched networks.i ii Summary Chapter 3 discusses the state of research and technology for o...

show abstract

Section: Capacity Analysis Of Client and Server Layer Resourcesmentioning

confidence: 90%

“…(2.13). In contrast, under static traffic, minimizing the mean hop distance alone is sufficient as α = 1 [BSG04].…”

Section: Capacity Analysis Of Client and Server Layer Resourcesmentioning

confidence: 99%

Novel Network Architecture for Optical Burst Transport

Gauger¹

2009

PIK - Praxis Der Informationsverarbeitung Und Kommunikation

View full text Add to dashboard Cite

show abstract

“…In [2], the author presents a semi-empirical formulation for calculating a set of variables in which no knowledge of the network topology is required. In [3], a method to estimate the number of transponders is presented. In [6], we derived expressions for estimating the extra capacity required for dedicated protection.…”

Section: Introductionmentioning

confidence: 99%

A statistical model for CapEx fast calculation in optical transport networks

Pinto

Pavan

Morais

2009

2009 11th International Conference on Transparent Optical Networks

View full text Add to dashboard Cite

We present a statistical model to estimate the CapEx in multi-layer optical networks. This model allows a fast calculation of the CapEx without complete information. The accuracy of the model was evaluated considering practical optical networks. For all the networks considered an error smaller than 10% was obtained, which shows that is possible to estimate the CapEx with good accuracy even without complete information.

show abstract

“…The virtual topology characterizes both, the overprovisioning factor and the mean hop distance. While the mean hop distance per bit usually is slightly lower than the mean shortest path length in typical physical network topologies, 17 it equals 1 in the full-mesh topology. Based on the qualitative discussion above we conclude that the overprovisioning factor α p for a physical topology is lower than α fm for a full-mesh topology.…”

Section: Quantitative Argumentsmentioning

confidence: 99%

Optical burst switching: the network perspective

Gauger

2005

SPIE Proceedings

View full text Add to dashboard Cite

This paper motivates the combination of optical burst switching (OBS) networks with wavelength-routed networks which provide a virtual topology. Opportunities for advanced network design, support for important future transport network scenarios, and resilience as well as capacity adaptation functionality are among its key benefits.The paper discusses principal trade-offs, both qualitatively and quantitatively, regarding virtual topologies and statistical multiplexing in order to derive guidelines for resource efficient topology design. Then, the OBTN architecture is described, which can efficiently transport burst data over a virtual topology of lightpaths and can reduce the port count of optical burst-switched nodes. Finally, the OBTN dimensioning process is outlined and results of a unified performance and cost comparison are presented.

show abstract

An efficient method to estimate transponder count in multi-layer transport networks

Cited by 8 publications

References 4 publications

Novel Network Architecture for Optical Burst Transport

Novel Network Architecture for Optical Burst Transport

A statistical model for CapEx fast calculation in optical transport networks

Optical burst switching: the network perspective

Contact Info

Product

Resources

About