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Abstract: In this paper, the author proposes a new virtual topology, referred to as fully connected cubic network (FCCN), for the wavelength division multiplexing (WDM) multihop lightwave network. The FCCN is a multi-level, highly scalable and modular architecture. An m level FCCN is constructed by "fully connecting" 8 (m-1)-FCCNs. The FCCN satisfies very well all the design requirements for WDM lightwave networks. The nodal degree is no more than four, and independent of the network size. Both the diameter and the average hop distance are in the order of (Number of nodes)^1/3. Owing to the highly scalable structure, the routing algorithm proposed in this paper is very simple to implement. Wavelengths reuse technique can be applied with high efficiency to FCCN.

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