NDLI: A novel impairment aware routing and wavelength assignment algorithm for optical WDM networks

Content Provider	IEEE Xplore Digital Library
Author	Singh, M. Singh, M.L.
Copyright Year	2015
Description	Author affiliation: Dept. of Electron. & Commun., R.I.E.I.T. Railmajra, SBS Nagar, India (Singh, M.) \|\| Dept. of Electron. Technol., Guru Nanak Dev Univ., Amritsar, India (Singh, M.L.)
Abstract	In Optical Wavelength Division Multiplex (WDM) networks, besides other factors, the linear and non linear impairments in a lightpath also depend upon wavelength channel assigned to the lightpath along with the state of other channels in the applied WDM spectrum. In this paper we have purposed a novel mixed integer linear programming(MILP) model for solving routing and wavelength assignment problem that employed Binary logic operators to include impairments caused by the state of the neighboring channels. Further, the optical impairment applicable at each wavelength channel was distinct and under given conditions, each provisioned channel experienced variable amount of deterioration. We compared it with existing mathematical models in which strategic spectrum spacing was employed to mitigate the effect of impairments. It has been found that in the former method, Quality of Transmission (QoT) was maintained at all cost. The latter method though converged much faster but due to non-utilization of certain wavelength channels the overall traffic carrying capacity of WDM system get reduced.
Starting Page	1
Ending Page	5
File Size	328040
Page Count	5
File Format	PDF
e-ISBN	9781479969081
DOI	10.1109/IEMCON.2015.7344429
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-10-15
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Q-factor Optical fibers State of the Network (SoN) Impairment aware Routing Binary Logic operators Mixed Integer Linear Programming(MILP) Wavelength division multiplexing Fiber nonlinear optics Mathematical model
Content Type	Text
Resource Type	Article

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