Corrected phase-type approximations of heavy-tailed queueing models in a Markovian environment

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Samenvatting

We develop accurate approximations of the delay distribution of the MArP/G/1 queue that capture the exact tail behavior and provide bounded relative errors. Motivated by statistical analysis, we consider the service times as a mixture of a phase-type and a heavy-tailed distribution. With the aid of perturbation analysis, we derive corrected phase-type approximations as a sum of the delay in an MArP/PH/1 queue and a heavy-tailed component depending on the perturbation parameter. We exhibit their performance with numerical examples.
Originele taal-2Engels
Plaats van productieEindhoven
UitgeverijEurandom
Aantal pagina's48
StatusGepubliceerd - 2014

Publicatie series

NaamReport Eurandom
Volume2014004
ISSN van geprinte versie1389-2355

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