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WDM Network Protection Using Pre-configured Cycle with Effective Wavelength Converters

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Abstract

WDM network protection can be provided very efficiently by pre-configured protection cycles (p-cycles). With p-cycle protection it has been assumed that these networks are fully wavelength convertible. However, this is not economically feasible, as the cost of a converter is very high. In proposed work, the total number of wavelength converters to be used in WDM network systems has been minimized using integer linear programming (ILP). A single fiber has been used for both the working and protection paths. The number of converters to access the p-cycles in case of failures has been obtained using the ILP. The comparison of total number of converters required and wavelengths used are made for various case scenarios and ILP developed by us provides an effective solution. Three test networks are being simulated. The percentage reduction in converter count for NET 1 has been found to be 43.80% and 48.90% with SWP and with MCWP, respectively. The same reduction for NET 2 come out to be 21.08% and 23.58% and for NET 3 as 33.70% and 37.88%.

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  1. Department of Electronics Engineering, HBTU, Kanpur, Uttar Pradesh, India

    Vidhi Gupta & Rachna Asthana

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  1. Vidhi Gupta
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  2. Rachna Asthana
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Correspondence to Vidhi Gupta.

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Gupta, V., Asthana, R. WDM Network Protection Using Pre-configured Cycle with Effective Wavelength Converters. J. Inst. Eng. India Ser. B 104, 945–951 (2023). https://doi.org/10.1007/s40031-023-00904-0

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