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The main contribution of this work is to propose a distributed on-demand routing and wavelength assignment algorithm for WDM networks. The proposed algorithm, termed WDM-DSR, is capable to select routes and establish light-paths via message exchanges without imposing a major overhead on the network. Also, we show that the proposed scheme can be used to balance the load in a WDM network. The simulation...
The performance of WDM networks are usually analyzed through the blocking probability of a pool of requests. It is argued that alternative routes can have a significant impact on the blocking probability of a WDM network. In this work, we analyze the impact of alternative routes in mesh and ring topologies. The results show that, contrary to what would be expected, having alternative routes may have...
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