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      Dimensioning shared-per-node recirculating fiber delay line buffers in an optical packet switch

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      Author
      Akar, N.
      Gunalay, Y.
      Date
      2013
      Source Title
      Performance Evaluation
      Print ISSN
      0166-5316
      Publisher
      Elsevier
      Volume
      70
      Issue
      12
      Pages
      1059 - 1071
      Language
      English
      Type
      Article
      Item Usage Stats
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      Abstract
      Optical buffering based on fiber delay lines (FDLs) has been proposed as a means for contention resolution in an optical packet switch. In this article, we propose a queuing model for feedback-type shared-per-node recirculating FDL optical buffers in asynchronous optical switching nodes. In this model, optical packets are allowed to recirculate over FDLs as long as the total number of recirculations is less than a pre-determined limit to meet signal loss requirements. Markov Modulated Poisson Process (MMPP)-based overflow traffic models and fixed-point iterations are employed to provide an approximate analysis procedure to obtain blocking probabilities as a function of various buffer parameters in the system when the packet arrival process at the optical switch is Poisson. The proposed algorithm is numerically efficient and accurate especially in a certain regime identified with relatively long and variably-sized FDLs, making it possible to dimension optical buffers in next-generation optical packet switching systems.
      Keywords
      Fiber delay lines
      Markov modulated Poisson process
      Optical burst switching
      Optical packet switching
      Overflow models
      Asynchronous optical switching
      Fiber delay line (FDL)
      Fiber delay line buffers
      Fixed-point iterations
      Markov modulated Poisson process
      Optical packet switches
      Optical packet switching
      Overflow model
      Optical burst switching
      Optical switches
      Packet networks
      Packet switching
      Queueing theory
      Switching systems
      Telecommunication traffic
      Waves
      Feedback
      Permalink
      http://hdl.handle.net/11693/20719
      Published Version (Please cite this version)
      http://dx.doi.org/10.1016/j.peva.2013.09.003
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      • Department of Electrical and Electronics Engineering 3524
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