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Online impairments-aware routing within a path computation element

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Author

  • F. Solano
  • M. Zotkiewicz
  • Michal Pioro

Summary, in English

A Path Computation Element (PCE) is a computing device in a network capable of calculating paths. Once a PCE receives a path computation request, the PCE is suppose to provide a response within a reasonable short time. However, computing a feasible path is not a straightforward task, since the computational problem must consider several constraints in a short time. In this paper we propose an algorithm for light-paths computation for this purpose that is intended to comply with the PCE standard. Our algorithm considers optical impairments, wavelength conversion and nodes with limited switching capabilities. Optical impairments are estimated using a Q-factor. The routing problem is solved using Multi-Constrained Shortest Path exact algorithm.

Publishing year

2009

Language

English

Pages

1048-1052

Publication/Series

[Host publication title missing]

Document type

Conference paper

Publisher

IEEE - Institute of Electrical and Electronics Engineers Inc.

Topic

  • Electrical Engineering, Electronic Engineering, Information Engineering

Conference name

43rd annual Asilomar conference on signals, systems and computers, 2009

Conference date

2009-11-01 - 2009-11-04

Conference place

Pacific Groove, CA, United States

Status

Published

Research group

  • Networking

ISBN/ISSN/Other

  • ISSN: 1058-6393
  • ISBN: 978-1-4244-5825-7