On the multicast capacity of unidirectional and bidirectional packet-switched WDM ring networks

Henryk Zähle, Michael Scheutzow, Martin Reisslein, Martin Maier

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

In this paper we examine the relationship between the effective capacity (stability limit) of unidirectional and bidirectional packet-switched wavelength division multiplexing (WDM) ring networks for multicast traffic. We consider both bidirectional rings with one packet copy transmission per wavelength channel and two packet copy transmissions. We first prove bounds for the ratio of the multicast capacity of the bidirectional ring to the multicast capacity of the unidirectional ring. Specifically, we show that this ratio is at least two for two copy transmission in the bidirectional ring, and at most two for one copy transmission. We derive closed form expressions of the multicast capacity ratios for networks with a large number of nodes and from these expressions show that the ratios tend to two for a large number of multicast destinations. We demonstrate that for the bidirectional ring with two copy transmission the ratio becomes as large as 2.276. We also find that in the bidirectional ring, the capacity gain with two copy transmission over one copy transmission reaches 30.4%.

Original languageEnglish (US)
Pages (from-to)105-119
Number of pages15
JournalIEEE Journal on Selected Areas in Communications
Volume25
Issue number4
DOIs
StatePublished - May 2007

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Wavelength division multiplexing
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Keywords

  • Destination stripping
  • Multicast
  • Ring network
  • Spatial wavelength reuse
  • Throughput capacity
  • Wavelength division multiplexing

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Computer Networks and Communications

Cite this

On the multicast capacity of unidirectional and bidirectional packet-switched WDM ring networks. / Zähle, Henryk; Scheutzow, Michael; Reisslein, Martin; Maier, Martin.

In: IEEE Journal on Selected Areas in Communications, Vol. 25, No. 4, 05.2007, p. 105-119.

Research output: Contribution to journalArticle

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