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FWM-Aware Dynamic Routing and Wavelength Assignment for Wavelength-Routed Optical Networks

Adelys MARSDEN, Akihiro MARUTA, Ken-ichi KITAYAMA

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Summary :

A dynamic routing and wavelength assignment (RWA) algorithm encompassing physical impairment due to Four-Wave Mixing (FWM) is proposed, assuming conventional On-Off-Keying (OOK) modulation format. The FWM effect is one of the most severe physical impairments to be considered for the future photonic networks since the accumulation of FWM crosstalk causes a fatal degradation in the wavelength-routed optical network performance. A novel cost function is introduced based upon an impairment-constraint-based routing (ICBR) approach, taking into account the network utilization resources and the physical impairment due to FWM crosstalk. Simulations results show that the proposed algorithm leads to a more realistic system performance compared to those of related approaches of dynamic RWA that fail to consider physical impairments into the routing scheme.

Publication
IEICE TRANSACTIONS on Communications Vol.E91-B No.7 pp.2145-2151
Publication Date
2008/07/01
Publicized
Online ISSN
1745-1345
DOI
10.1093/ietcom/e91-b.7.2145
Type of Manuscript
Special Section PAPER (Joint Special Section on Opto-electronics and Communications toward NGN and beyond)
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