Abstract

<p><a href="http://www.osa-jon.org/features/OIN_2004.html">Feature Issue on Optical Interconnection Networks (OIN)</a></p> A system of slotted interconnected rings employing a combination of wavelength-division multiple access (WDMA) with time-division multiple access (TDMA) can serve a metropolitan area without electro-optical conversion and buffering of payload except at system entry points. The multiple rings overcome the power budget limitations of the single ring extending the reach of the system to even the largest metropolitan areas, the WDM dimension provides flexibility and ease of evolution, and the TDMA dimension offers the efficiency of multiplexing gain particularly under bursty traffic. The system control information is transferred on a dedicated wavelength and is processed in the electrical domain at the ring nodes and the hub, which interconnects the rings. The algorithms control the access to each ring and the scheduling of slots among the rings, based on explicit reservations, to adapt efficiently to the fluctuating offered load. We present the design and hardware implementation of the access control algorithms for such a system built in the framework of the Information Society Technologies (IST) project DAVID (data and voice over DWDM).

© 2004 Optical Society of America

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Advances in Multimedia, Video and Signal

J. D. Angelopoulos, N. Leligou, H. Linardakis, and A. Stavdas, "A distributed fairness mechanism for slotted WDM rings," in Advances in Multimedia, Video and Signal Processing Systems, N. Mastorakis and V. Kluev, eds. (WSEAS Press, Athens, 2002), pp. 267-273.

Comput. Netw.

H.-C. Leligou, J. D. Angelopoulos, C. Linardakis, and A. Stavdas, "A MAC protocol for efficient multiplexing QoS-sensitive and best-effort traffic in dynamically configurable WDM rings," Comput. Netw. 44(3), 305-317 (2004).

ECOC 2001

N. L. Sauze, A. Dupas, E. Dotaro, L. Ciavaglia, M. Nizam, A. Ge, and L. Dembeck, "A novel low cost optical packet metropolitan ring architecture," presented at the 27th European Conference on Optical Communication (ECOC 2001), Amsterdam, The Netherlands, 1-3 October 2001.

ECOC 2002

B. Mortensen and M. Berger, "Optical packet switching demonstrator," presented at the 28th European Conference on Optical Communication (ECOC 2002), Bella-Center, Copenhagen, Denmark, 8-12 September 2002.

High Performance Switching & Routing '03

Ch. Linardakis, N. Leligou, S. Zontos, and A. Stavdas, "Controlling high speed slotted data channels in WDM metro rings," presented at the IEEE Workshop on High Performance Switching and Routing, Torino, Italy, 24-28 June 2003.

ICTON 2003

A. Stavdas, C. Matrakidis, N. Leligou, S. Sygletos, and I. Pountourakis, "Efficient statistical multiplexing in the optical layer as a function of the reconfiguration speed requirements in a metropolitan area network," presented at the Fifth International Conference on Transparent Optical Networks (ICTON), Warsaw, Poland, 29 June-3 July 2003.

IEEE J. Sel. Areas Commun.

D. Chiaroni, "Packet switching matrix: a key element for the backbone and the metro," IEEE J. Sel. Areas Commun. 21, 1018-1025 (2003).

L. Dittmann, C. Develder, D. Chiaroni, F. Neri, F. Callegati, W. Koerber, A. Stavdas, M. Renaud, A. Rafel, J. Sole-Pareta, W. Cerroni, N. Leligou, L. 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).

I. M. White, M. S. Rogge, K. Shrikhande, and L. G. Kazovsky, "A summary of the HORNET project: a next-generation metropolitan area network," IEEE J. Sel. Areas Commun. 21, 1478-1494 (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.

M. A. Marsan, A. Bianco, E. Leonardi, M. Meo, and F. Neri, "MAC protocols and fairness control in WDM multirings with tunable transmitters and fixed receivers," J. Lightwave Technol., Special Issue on Multiwavelength Optical Technology and Networks, 14, 1230-1244 (1996).

Photonics in Switching 2003

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 2003 (PS2003), Versailles (Paris), France, 28 September-2 October 2003.

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