Bandwidth Allocation for Bursty Isochronous Traffic in a Hybrid Switching System

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Original languageEnglish
Pages (from-to)1367-1371
Journal / PublicationIEEE Transactions on Communications
Issue number12
Publication statusPublished - Dec 1989
Externally publishedYes


We consider a hybrid switch which provides integrated packet and circuit switching. The statistical characteristics of the bandwidth utilized by bursty isochronous traffic are derived. The derivation takes into consideration the waste inherent in the framing structure. Bursty traffic of circuit allocation requests is modelled by a switched Poisson process. The analysis is performed for two circuit allocation policies, namely, repacking and first-fit with static numbering. Numerical results are presented to demonstrate the effect of traffic burstiness on the capacity utilized by the isochronous traffic. © 1989 IEEE