T. Yi (USA)
Wavelength assignments, broadcast, sparse conversion optical tree networks
We consider a wavelength division multiplexing (WDM) optical tree network with converters available at a des ignated subset of nodes only. We provide a linear al gorithm to assign an available wavelength for each link such that, with the help of a minimum number of con verters, each node can send messages to all the others. It generalizes an earlier algorithm in which converters are available at all nodes.
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