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Adaptive open capacity routing in WDM networks with heterogeneous wavelength conversion capabilities

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3 Author(s)
Wei Xu ; Sch. of Comput., Wuhan Univ., China ; Yu Hua ; Chanle Wu

We develop an adaptive routing algorithm for the dynamic RWA problem in WDM networks with heterogeneous wavelength conversion capabilities, called MOCR-HWCC. By heterogeneous, we mean that different nodes of the WDM network might have different wavelength conversion capabilities. The network modeling process first expanded the network into several virtual sub-networks, one per wavelength. In virtual of maximum open capacities of node pairs in the graph of the expanded network, critical links are identified and weight of links are set. And an optimal route with required bandwidth and minimum interference of future demands are computed based on this weighted graph. Finally, we show that the developed algorithm performs very well in terms of performance metrics such as the number of rejected demands.

Published in:

Communications, 2003. APCC 2003. The 9th Asia-Pacific Conference on  (Volume:1 )

Date of Conference:

21-24 Sept. 2003