Reliability Modeling and Performance Evaluation of Variable Link-Capacity Networks

Pramod K. Varshney, Pei Liang Chang, Abhay R. Joshi

Research output: Contribution to journalArticlepeer-review

25 Scopus citations


This paper presents a composite performance index for communication networks with variable link-capacities. This index is based on link reliabilities and multiple-capacity link-states. Source-to-terminal success is the ability to provide connectivity with a certain traffic-carrying capacity. This index is useful for determining the performance of networks with links operating with residual traffic-carrying capacity and gives a good idea of the available resources for a particular s-t connection. An algorithm evaluates the composite performance index. Examples illustrate the method.

Original languageEnglish (US)
Pages (from-to)378-382
Number of pages5
JournalIEEE Transactions on Reliability
Issue number3
StatePublished - Sep 1994


  • Computer network
  • Multistate link
  • Network performance measure
  • Network reliability

ASJC Scopus subject areas

  • Safety, Risk, Reliability and Quality
  • Electrical and Electronic Engineering


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