Admela Jukan

QoS-based Wavelength Routing in Multi-Service WDM Networks

• Gebundenes Buch

Produktbeschreibung

This book focuses on methods for service-differentiated and constraint-based wavelength routing and resource allocation for multi-service WDM networks, tailored at needs of specific network users and adaptable to services yet to emerge. A number of unique routing solutions are proposed, and an extensive analysis of dynamically re-configurable multi-service WDM networks impart the major contribution to the current efforts in standardisation and network operation, and give an inimitable motivation for further study and research.

---

The need to establish wavelength-routed connections in a service-differentiated fash ion is becoming increasingly important due to a variety of candidate client networks (e. g. IP, SDH/SONET, ATM) and the requirements for Quality-of-Service (QoS) de livery within transport layers. Up until now, the criteria for optical network design and operation have usually been considered independently of the higher-layer client signals (users), i. e. without taking into account particular requirements or constraints originating from the users' differentiation. Wavelength routing for multi-service net works with performance guarantees, however, will have to do with much more than finding a path and allocating wavelengths. The optimisation of wavelength-routed paths will have to take into account a number of user requirements and network con straints, while keeping the resource utilisation and blocking probability as low as pos sible. In a networking scenario where a multi-service operation inWDM networks is assumed, while dealing with heterogeneous architectures (e. g. technology-driven, as transparent, or regenerative), efficient algorithms and protocols for QoS-differentiated and dynamic allocation of physical resources will playa key role. This work examines the development of multi-criteria wavelength routing for WDM networks where a set of performances is guaranteed to each client network, taking into account network properties and physical constraints.

Produktdetails

• Progress in Communication Networks 1
• Verlag: Springer / Springer Vienna / Springer, Wien
• Artikelnr. des Verlages: 978-3-211-83625-5
• 2001
• Seitenzahl: 260
• Erscheinungstermin: 26. Februar 2001
• Englisch
• Abmessung: 246mm x 173mm x 19mm
• Gewicht: 624g
• ISBN-13: 9783211836255
• ISBN-10: 321183625X
• Artikelnr.: 09724185

Inhaltsangabe

1 Introduction.- 1.1 This thesis.- 1.2 Overview.- 2 A QoS-based optical networking.- 2.1 From quality attributes to QoS in optical networks.- 2.2 Wavelength-routed network architecture.- 2.3 A QoS-selective architecture.- 2.4 Basic management and control issues.- 2.5 Restoration in wavelength-routed networks.- 3 Service-differentiated connection set-up.- 3.1 Wavelength-routed services: a debate.- 3.2 Client layer perspectives.- 3.3 The basic model for connection management.- 3.4 Connection and resource management architecture.- 3.5 Two methods for connection set-up.- 4 The methods based on graph transformation.- 4.1 Two methods for QoS-routing revisited.- 4.2 Abstraction of the network state representation.- 5 Algorithms for QoS-based wavelength routing.- 5.1 Wavelength routing update.- 5.2 Benefits of wavelength shifting.- 5.3 Algorithms for service-specific wavelength routing.- 5.4 Methods for service-specific restoration.- 6 Performance study and numerical results.- 6.1 Basic assumptions.- 6.2 Traffic generation.- 6.3 Network topology.- 6.4 Shortest path algorithms revisited.- 6.5 Wavelength routing without service-specific requirements.- 6.6 Service-specific wavelength routing.- 7 Conclusions and future work.- 8 References and further reading.- 9 Abbreviations.- 10 Index.