Abstract

The proliferation of data-centric networks has intensified the research efforts for development of architectures and technologies supporting fast reconfigurable optical networks accommodating any temporal and (or) spatial traffic fluctuations without WDM channel overprovisioning. The novel core network architecture presented in this paper is based on partitioning a meshed network into a number of clusters. Within each cluster the architecture exploits metropolitan area concepts (MACs) to achieve statistical multiplexing gain by transparent transportation of fixed duration slots. These short slots, which are controlled by means of a MAC protocol, are combined to form larger frames that are then exchanged between the clusters. Specific nodes that serve as gateways between clusters undertake the coordination of frame switching and end-to-end routing. Thus, traffic within a particular cluster enjoys reservation-based no-loss transport, while for the communication between clusters either robust two-way reservation schemes or even optical burst switching (OBS) approaches are possible. The end result is an architecture that supports statistical multiplexing within the optical layer with good performance and reasonable complexity.

© 2004 Optical Society of America

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References

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AEU Int. J. Electron. Commun.

K. Dolzer, C. Gauger, J. Späth, and S. Bodamer, "Evaluation of reservation mechanisms in optical burst switching," AEU Int. J. Electron. Commun. 55, 1-8 (2001).

IEEE Globecom 2002

V. Vokkarane, Q. Zhang, J. Jue, and B. Chen, "Generalized burst assembly and scheduling techniques for QoS support in optical burst-switched networks," in Proceedings of IEEE Globecom 2002 (IEEE, 2002).

IEEE INFOCOM 2003

J. Ramamurtham and J. Turner, "Time sliced optical burst switching," in Proceedings of IEEE INFOCOM 2003 (IEEE, 2003).

IEEE J. Lightwave Technol.

J. Y. Wei and R. I. McFarland, "Just-in-time signaling for WDM optical burst switching networks," IEEE J. Lightwave Technol. 18, 2019-2037 (2000).

IEEE J. Sel. Areas Commun.

L. Dittmann, C. Develder, D. Chiaroni, F. Neri, F. Callegati, W. Koerber, A. Stavdas, M. Renaud, A. Rafel, J. Solé-Pareta, W. Cerroni, N. Leligou, Lars Dembeck, B. Mortensen, M. Pickavet, N. Le Sauze, M. Mahony, B. Berde, and G. Eilenberger, "The European IST project DAVID: a viable approach towards optical packet switching," IEEE J. Sel. Areas Commun. 21, 1026-1040 (2003).

J. High Speed Netw.

C. Qiao and M. Yoo, "Optical burst switching (OBS)--a new paradigm for an optical internet," J. High Speed Netw. 8, 69-84 (1999).

J. Lightwave Technol.

J. Opt. Netw.

Photonics in Switching 03

Ch. Linardakis, H.-C. Leligou, A. Salis, and J. D. Angelopoulos, "Control of slotted traffic among interconnected WDM rings by explicit reservation," presented at Photonics in Switching 03, Versailles, France, September 3, 2003.

Proc. SPIE

M. Yoo, C. Qiao, and S. Dixit, "Comparative study of contention resolution policies in optical burst-switched WDM networks," in Terabit Optical Networking: Architecture, Control, and Management Issues, J. M. Senior, S. Dixit, and C. Qiao, eds., Proc. SPIE 4213, 124-135 (2000).

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