High-speed and high-capacity transport networks are necessary for providing future
broadband services and multimedia applications. Optical networks, such as wavelength …

Rather than restricting a stream of data to a single channel within a multi-channel link
between a source node and a core node, each channel is divided into time slots and the …

In the backbone network, the high level of traffic aggregation achieved by numerous users is
efficiently served by means of optical circuit switched solutions-the so-called wavelength …

Abstract All-optical Wavelength Division Multiplexing (WDM) backbones are believed to be a
fundamental component in future high speed networks. Currently, the most pursued …

Optical networks are used to convey very large Volumes of digital data traffic on continental
and intercontinental scales, for example for Internet multimedia applications. At present …

A system for providing high connectivity communications over a packet-switched optical ring
network comprises a core optical ring having at least one node, the node being coupled to a …

An optical circuit switching matrix includes a plurality of optical ports, each optical port being
optically coupled to a respective one of a plurality of user nodes and an optical coupler …

The Banyan network is shown to have a computationally unsuitable structure for finding
maximum passable subpermutations, which is proved NP-complete. Using some non …

(57) ABSTRACT A method for providing high connectivity communications over a packet-
switched optical ring network comprises a core optical ring having at least one node, the …

We show that the problem of finding the maximum passable subset of a permutation through
a banyan is NP-complete. We then describe a two-level optical interconnection structure for …