A collision-avoidance WDM optical star network

Mark J. Karol, Bernard Glance

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

Wavelength-Division Multiplexing (WDM) offers the potential to support many concurrent transmissions on a single optical fiber. However, for multiuser packet communications with unpredictable user demands (e.g., in a local or metropolitan area network), the coordination and control of access to the WDM channels is difficult. With tunable transmitters and fixed-tuned receivers, the Protection-Against-Collision (PAC) circuit solves this media access problem by allowing a packet access to the network only if the destination channel is available. In geographically-distributed applications the maximum achievable throughput (normalized to the transmission rate) is typically between 0.4 and 0.5 per channel. In a centralized switch, the (normalized) maximum achievable throughput can approach 0.8 per channel.

Original languageEnglish
Pages (from-to)931-943
Number of pages13
JournalComputer Networks and ISDN Systems
Volume26
Issue number6-8
DOIs
StatePublished - Mar 1994

Keywords

  • Broadcast star network
  • Collision-avoidance switch
  • Optical switching
  • Packet switching
  • Wavelength-division multiplexing

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