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Discontinuous waveband switching in WDM optical networks

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2 Author(s)
Lekkala, B. ; Dept. of Comput. Sci. & Eng., Nebraska-Lincoln Univ., Lincoln, NE ; Ramamurthy, B.

Routing techniques used in wavelength routed optical networks (WRN) do not give an efficient solution with waveband routed optical networks (WBN) as the objective of routing in WRN is to reduce the blocking probability and that in WBN is to reduce the number of switching ports. Routing in WBN can be divided two parts, finding the route and grouping the wavelength assigned into that route with some existing wavelengths/wavebands. In this paper, we propose a heuristic for waveband routing, which uses a new grouping strategy called discontinuous waveband grouping to group the wavelengths into a waveband. The main objective of our algorithm is to decrease the total number of ports required and reduce the blocking probability of the network. The performance of the heuristic is analyzed using simulation on a WBN with non-uniform wavebands

Published in:

Electro Information Technology, 2005 IEEE International Conference on

Date of Conference:

22-25 May 2005