A new approach to model virtual channels in interconnection networks

N. Alzeidi*, A. Khonsari, M. Ould-Khaoua, L. Mackenzie

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)


Dealing with virtual channels has always been a critical issue in developing analytical performance models for interconnection networks. Almost all previous studies relied on a method proposed by Dally to capture the effect of virtual channels multiplexing in the performance of interconnection networks. This paper presents a new method to model the effect of virtual channel multiplexing in high-speed wormhole-switched interconnection networks. Dally's method loses its accuracy as the traffic load increases due to blocking nature of wormhole-switched networks. Our new method is based on a finite capacity queue, M / G / 1 / V and comparing to Dally's method achieves a higher degree of accuracy under low, moderate and high traffic loads. Furthermore, its simplicity eases its employment under different network conditions and setup. The presented model is validated by means of an event driven simulator and a detailed comparison with Dally's method is presented.

Original languageEnglish
Pages (from-to)1121-1130
Number of pages10
JournalJournal of Computer and System Sciences
Issue number8
Publication statusPublished - Dec 2007
Externally publishedYes


  • Analytical models
  • Interconnection networks
  • Virtual channels
  • Wormhole switching

ASJC Scopus subject areas

  • Theoretical Computer Science
  • Computer Networks and Communications
  • Computational Theory and Mathematics
  • Applied Mathematics


Dive into the research topics of 'A new approach to model virtual channels in interconnection networks'. Together they form a unique fingerprint.

Cite this