Infinitesimal perturbation analysis for general discrete event systems
Journal of the ACM (JACM)
Convergence properties of infinitesimal perturbation analysis
Management Science
Stationary waiting time derivatives
Queueing Systems: Theory and Applications
Probability in the Engineering and Informational Sciences
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Recently, Konstantopoulos and Zazanis (1992, 1994)and Brémaud and Lasgouttes (1993) derive the infinitesimalperturbation analysis (IPA) estimators for the stationary andergodic G/G/1/∞ queue using Palm calculus,where neither regenerative structure nor convex property arerequired and the strong consistency is ensured by ergodic theorem.This work has been motivated by them and derives the smoothedperturbation analysis (SPA) estimator on the stationary and ergodicframework. The problem here is how to treat the ’catastrophicjumps‘ on the sample path of the steady state and this is solvedcleverly by using the Palm calculus. We deal with multi-classqueues in this paper but our key formula is expected to be usefulto any systems to which the SPA is applicable.