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Online impairments-aware routing within a path computation element

Författare

  • 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.

Publiceringsår

2009

Språk

Engelska

Sidor

1048-1052

Publikation/Tidskrift/Serie

[Host publication title missing]

Dokumenttyp

Konferensbidrag

Förlag

IEEE - Institute of Electrical and Electronics Engineers Inc.

Ämne

  • 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

Forskningsgrupp

  • Networking

ISBN/ISSN/Övrigt

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