Modified ShuffleNet for Multihop All-Optical WDM Networks Employing Wavelength Reuse

A modified multihop ShuffleNet configuration for WDM all-optical networks is described which is rearrangeable and allows wavelength reuse at each node as it expands. This configuration does not require any rearrangement of preceding node and wavelength assignments when new nodes and wavelengths are...

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Bibliographic Details
Published in:Optical fiber technology 2000-01, Vol.6 (1), p.6-14
Main Authors: Jamro, M.Y., Murtaza, G., Leeson, M.S., Senior, J.M.
Format: Article
Language:English
Subjects:
all-optical networks
modular and scalable networks
multihop
network architecture
ShuffleNet
wavelength reuse
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Description
Summary:A modified multihop ShuffleNet configuration for WDM all-optical networks is described which is rearrangeable and allows wavelength reuse at each node as it expands. This configuration does not require any rearrangement of preceding node and wavelength assignments when new nodes and wavelengths are added and it can function with fewer overall number of nodes. By comparison, the traditional Perfect ShuffleNet requires a large number of nodes to be available for any updating of the configuration. Most of these nodes remain idle during the normal signal routing process leading to reduced network link capacity. Furthermore, to facilitate wavelength reuse when updating, the Perfect ShuffleNet necessitates the rearrangement of preceding node and wavelength assignments. This leads to generalized forms of ShuffleNet where wavelength reuse forces network architecture into irregular topologies. The modified ShuffleNet proposed here is capable of facilitating wavelength reuse without the modification of initial node and wavelength assignments and could be realised by using a star topology.
ISSN:1068-5200
1095-9912
DOI:10.1006/ofte.1999.0312