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Evaluation of packet scheduling in hybrid optical/electrical switch

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Abstract

This paper presents a hybrid optical/electrical switch for high-capacity future network development. A switch architecture to provide packet switching by solving contention in wavelength and time domains is considered relying on available optical and electrical technology. Physical and logical aspects regarding switch feasibility and management, in relation to the hybrid nature of the switch, are addressed. Scheduling algorithms to support multi-service packet forwarding are compared with optimally exploit optical and electrical subsystems according to traffic characteristics and needs. The main outcomes of the paper suggest criteria to design high-capacity packet switches, based on present-day technology constraints and quality of service requirements, to achieve a fair balance between optical transparency and loss performance.

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Authors and Affiliations

  1. DEIS, University of Bologna, Bologna, Italy

    Carla Raffaelli

  2. Department of Telematics, NTNU, Trondheim, Norway

    Michele Savi

  3. Department of Telecommunications Science and Technology, University of Peloponnese, Tripolis, Greece

    Christina Tanya Politi & Alexandros Stavdas

Authors
  1. Carla Raffaelli
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  2. Michele Savi
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  3. Christina Tanya Politi
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  4. Alexandros Stavdas
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Correspondence to Carla Raffaelli.

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Raffaelli, C., Savi, M., Politi, C.T. et al. Evaluation of packet scheduling in hybrid optical/electrical switch. Photon Netw Commun 23, 92–108 (2012). https://doi.org/10.1007/s11107-011-0340-0

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  • DOI: https://doi.org/10.1007/s11107-011-0340-0

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