Hierarchical Networks for Optical Communications

ShuffleNet and de Bruijn networks have been proposed as multihop lightwave networks based on wavelength division multiplexing (WDM). With multihop lightwave networks, few fixed wavelength transmitters/receivers are assigned to each user, eliminating the need for wavelength agility and pretransmissio...

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Bibliographic Details
Published in:Journal of parallel and distributed computing 2000-01, Vol.60 (1), p.1-16
Main Authors: Lee, Kyungsook Y., Liu, Guoping, Jordan, Harry F.
Format: Article
Language:English
Subjects:
Applied sciences
Exact sciences and technology
Information, signal and communications theory
Interconnected networks
Multiplexing
Networks and services in france and abroad
Signal and communications theory
Telecommunications
Telecommunications and information theory
Teleprocessing networks. Isdn
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Summary:ShuffleNet and de Bruijn networks have been proposed as multihop lightwave networks based on wavelength division multiplexing (WDM). With multihop lightwave networks, few fixed wavelength transmitters/receivers are assigned to each user, eliminating the need for wavelength agility and pretransmission coordination. These networks have been shown to be very effective for uniform traffic. For communications with high locality, we propose two-level hierarchical networks. At the first level, each cluster of users can be connected either via a ShuffleNet (SH) or a de Bruijn network (dB). At the second level, all the clusters in the system can be connected by two rings in opposite directions (SH/Ring and dB/Ring), a de Bruijn network (dB/dB), or a ShuffleNet (SH/SH). The performance of ShuffleNet, de Bruijn networks, and the hierarchical networks SH/Ring, dB/Ring, dB/dB, and SH/SH is analyzed. For communications with a high locality, the hierarchical networks are shown to be very effective.
ISSN:0743-7315
1096-0848
DOI:10.1006/jpdc.1999.1591