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Journal of Computer Networks and Communications
Volume 2011, Article ID 310517, 17 pages
Review Article

Burst-Switched Optical Networks Supporting Legacy and Future Service Types

1Institute of Telecommunications at the Vienna University of Technology, Gusshausstraβe 25/E389, 1040 Vienna, Austria
2Department of Photonics Engineering at the Technical University of Denmark (DTU Fotonik), 343/130 Ørsteds plads, 2800 Kgs. Lyngby, Denmark

Received 31 March 2011; Accepted 29 August 2011

Academic Editor: John Doucette

Copyright © 2011 Gerald Franzl et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Focusing on the principles and the paradigm of OBS an overview addressing expectable performance and application issues is presented. Proposals on OBS were published over a decade and the presented techniques spread into many directions. The paper comprises discussions of several challenges that OBS meets, in order to compile the big picture. The OBS principle is presented unrestricted to individual proposals and trends. Merits are openly discussed, considering basic teletraffic theory and common traffic characterisation. A more generic OBS paradigm than usual is impartially discussed and found capable to overcome shortcomings of recent proposals. In conclusion, an OBS that offers different connection types may support most client demands within a sole optical network layer.