Effect of Modeling Uncertainty on Some Routing Problems

M. S. Kodialam
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M. S. Kodialam: Lucent Technologies

Journal of Optimization Theory and Applications, 1999, vol. 101, issue 1, No 11, 203-211

Abstract: Abstract In this paper, we consider the routing problem described in Mohanty and Cassandras (Ref. 1). As in Ref. 1, we show that the optimal Bernoulli split to minimize mean time in the system is asymptotically independent of the variance of the service time. We give simple proofs of the results in that paper. We exploit the fact that the optimal split to minimize the mean queueing time is variance independent and the special structure of the Karush–Kuhn–Tucker optimality conditions to derive the optimal solution. Apart from being very straightforward, the proofs also give insight into the reason for the existence of the variance-independent asymptotically optimal routing policy.

Keywords: Routing; optimization; queueing systems; robustness (search for similar items in EconPapers)
Date: 1999
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DOI: 10.1023/A:1021731329866

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