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  • exponential approach to equilibrium  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Queueing systems 6 (1990), S. 261-275 
    ISSN: 1572-9443
    Keywords: M/G/1 queue ; time-dependent behavior ; approximations ; exponential approach to equilibrium ; numerical inversion of Laplace transforms
    Source: Springer Online Journal Archives 1860-2000
    Topics: Computer Science
    Notes: Abstract This paper proposes easily-computed approximations to the finite-time expected waiting time for anM/G/1 system starting from an empty state. Both unsaturated (ρ〈1) and saturated (ρ〉1) conditions are considered. Numerical evidence is presented to indicate that the quality of the approximations is usefully good, especially when ease of computation is an issue. Further, the methodology is adapted to assess expected waiting time when inference must be made from a random sample of service times, and the decision is made to do so nonparametrically, i.e., without fitting a specific function. The results appear reasonable and potentially useful, and are not burdensome to obtain. The methodology investigated can also be applied to the variety of queueing models that are close siblings ofM/G/1: priority and breakdowns and “vacations” being examples. Of course other approximating and inferential options remain to be investigated.
    Type of Medium: Electronic Resource
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