FARE: An efficient integrated MAC protocol for differentiated services in WDM metro rings

Hui Tang Lin*, Wang Rong Chang, Ho Ting Wu

*Corresponding author for this work

Research output: Contribution to journalJournal Article peer-review

12 Scopus citations


This study investigates the fairness control, collision avoidance and QoS support issues of a particular WDM dual-ring network known as FT2-TR2. This system is an extended version of the original uni-directional FT-TR ring architecture, in which every node is equipped with a fixed-tuned transmitter and a tunable receiver on each ring. This study proposes a novel FAirness and REservation integrated protocol, designated FARE, which incorporates three mechanisms designed specifically to resolve the receiver collision problem, to achieve fairness among all of the network nodes, and to meet the tight delay requirements of multimedia applications. Simulation results are presented to demonstrate that FARE provides a high performance for real-time traffic while simultaneously providing significant performance improvements for best-effort traffic.

Original languageEnglish
Pages (from-to)1315-1330
Number of pages16
JournalComputer Communications
Issue number6
StatePublished - 26 03 2007
Externally publishedYes


  • Collision avoidance
  • Fairness control
  • Medium access control (MAC) protocol
  • Quality of service (QoS)
  • Wavelength division multiplexing (WDM)


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