Title:
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Modeling physical-layer impairments in multi-domain optical networks
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Author:
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Yannuzzi, Marcelo; Marín Tordera, Eva; Serral Gracià, René; Masip Bruin, Xavier; González de Dios, Óscar; Jimenez Chico, Javier; Verchere, Dominique
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Other authors:
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Universitat Politècnica de Catalunya. Departament d'Arquitectura de Computadors; Universitat Politècnica de Catalunya. ANA - Grup d'Arquitectures Avançades de Xarxes |
Abstract:
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The advantages of optical transparency are still confined
to the boundaries of a domain, since the optical signals are
subject to O/E/O conversions at the border nodes that separate
two optical domains. The extension of transparent connections
across domains requires advances both in the modeling of the
impairments suffered by the optical signals as well as in devising
strategies to exploit such models in practice. In this latter regard,
one of the main challenges is to design information exchange
models and protocols enabling optical bypass without disclosing
detailed physical-layer information among domains. In this paper,
we focus on the modeling and the exchange of impairmentrelated
information between optical domains. We propose a
model that conveniently captures the degradation experienced
by an optical signal along a lightpath, and describe it use in the
frontier between two neighbor domains. Our approach respects
the privacy and administrative limits of carrier networks, while
enabling the provision of transparent connections beyond domain
boundaries. The model and strategies proposed in this paper
generalize the contributions made by some of the most relevant
works in the field, providing in this way a first attempt toward
a unifying view and theory for quantifying the transmission
impairments in DWDM optical networks. |
Abstract:
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Peer Reviewed |
Subject(s):
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-Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Telecomunicació òptica -Wavelength division multiplexing -Optical communications -Xarxes de telecomunicacions òptiques -Multiplexatge -Comunicacions òptiques |
Rights:
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Document type:
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Article - Submitted version Conference Object |
Published by:
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IEEE Computer Society Publications
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