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Sparse Regeneration in Translucent Wavelength-Routed Optical Networks: Architecture, Network Design and Wavelength Routing

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Abstract

In this paper we study an alternate network architecture, called translucent network, to the fully transparent and fully opaque network architectures. In a translucent wavelength-routed optical network, a technique called sparse regeneration is used to overcome the severe lightpath blocking due to signal quality degradation and wavelength contention in a fully transparent network while using much less regenerators than in a fully opaque network. In this paper, we present a node model and a network model that perform sparse regeneration. We address the problem of translucent network design by proposing several regenerator placement algorithms based on different knowledge of future network traffic patterns. We also address the problem of wavelength routing under sparse regeneration by incorporating two regenerator allocation strategies with heuristic wavelength routing algorithms. We compare the performance of different regenerator placement algorithms and wavelength routing schemes through simulation experiments. The benefit of sparse regeneration is quantitatively measured under different network settings.

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Authors and Affiliations

  1. Information Sciences Institute, University of Southern California, USA

    Xi Yang

  2. Department of Computer Science and Engineering, University of Nebraska-Lincoln, Lincoln, NE, 68588-0115, USA

    Xi Yang & Byrav Ramamurthy

Authors
  1. Xi Yang
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  2. Byrav Ramamurthy
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Corresponding author

Correspondence to Byrav Ramamurthy.

Additional information

This work was supported by NSF grants (ANI-0074121 and EPS-0091900).

Portions of this work have appeared in the Proceedings of the OSA Optical Fiber Communications (OFC 1999) Conference [6] and the Proceedings of the IEEE Global Telecommunications (GLOBECOM 2001) Conference [12].

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Yang, X., Ramamurthy, B. Sparse Regeneration in Translucent Wavelength-Routed Optical Networks: Architecture, Network Design and Wavelength Routing. Photon Netw Commun 10, 39–53 (2005). https://doi.org/10.1007/s11107-005-1694-y

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  • DOI: https://doi.org/10.1007/s11107-005-1694-y

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