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Power-efficient design of multicast wavelength-routed networks

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2 Author(s)
Ali, M. ; Dept. of Comput. Sci. & Eng., Nebraska Univ., Lincoln, NE, USA ; Deogun, J.S.

In this paper, we introduce the power-efficient design space for multicast wavelength-routed networks. The power-efficient design space is based on the impact of power on the overall design of wavelength-routed networks. Two cross-connect architectures on this design concept are investigated. One is an existing architecture called splitter-and-delivery (SaD). The other is a new architecture called multicast-only splitter-and-delivery (MOSaD). The MOSaD architecture uses power splitters for multicast connections only, allowing unicast connections to pass without enduring unnecessary power losses. Our cross-connect design provides a strictly nonblocking service for unicast connections while eliminating unnecessary power loss of the SaD cross-connect. Experimental results demonstrate that the MOSaD architecture provides substantial savings in cost and reduction in signal power loss with minimal effects on the blocking performance of the network.

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Selected Areas in Communications, IEEE Journal on  (Volume:18 ,  Issue: 10 )