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Sparse converter placement in WDM networks and their dynamic operation using path-metric based algorithms

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4 Author(s)
Bose, S.K. ; Dept. of Electr. Eng., Indian Inst. of Technol., Kanpur, India ; Singh, Y.N. ; Raju, A.B. ; Popat, B.

We consider WDM networks with lightpath switching where wavelengths may be converted, as required, along the lightpath. For efficient converter usage in such a network, sparse converter placement may be followed where only some of the network nodes are equipped with wavelength converters. Given the nominal network traffic pattern, we present a simple heuristic algorithm which may be used to determine the location of these converters for good network performance. For a network designed in this fashion, we consider the application of a path-metric based heuristic algorithm for lightpath routing and wavelength selection along the links of the selected route. Dynamic operation of the sparse converter network is considered using this path-metric based algorithm for lightpath routing and wavelength selection.

Published in:

Communications, 2002. ICC 2002. IEEE International Conference on  (Volume:5 )

Date of Conference:

2002