Results 171 to 180 of about 2,852 (222)

A retrial queueing model with thresholds and phase type retrial times

, 2020
Summary: There is an extensive literature on retrial queueing models. While a majority of the literature on retrial queueing models focuses on the retrial times to be exponentially distributed (so as to keep the state space to be of a reasonable size), a few papers deal with nonexponential retrial times but with some additional restrictions such as ...
Chakravarthy, Srinivas R.
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Retrial queues and networks with constant retrial rate

, 2010
In the talk we review the results about retrial queues and networks with constant retrial rate. Speci fically we consider a network of queues with finite waiting room capacities. Jobs travel through the network by paths given by some routing matrix. If a job fi nds a queue with no available waiting space it goes into the orbit queue corresponding to ...
Avrachenkov, Konstantin
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Retrial

, 2018
Tato práce se zabývá problematikou obnovy řízení. Obnova řízení je jedním z mimořádných opravných prostředků. V práci se věnuji opravným prostředkům, historii obnovy, obnově řízení dle současné právní úpravy, obnově v judikatuře a v neposlední řadě také ...
Jaroševská, Pavlína
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On the Conditional Probability of a Successful Retrial in Retrial Queues

INFOR: Information Systems and Operational Research, 2011
Abstract Customer retrials are very common phenomena in industrial engineering and business management. The number of retrials required before receiving a success is an important measure for evaluating system performance. Focusing on the M/M/1 and M/M/2 retrial queues, we study the conditional probability of a successful retrial given that all previous
Bin Liu, Jinting Wang, Yiqiang Q. Zhao
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Approximations of retrial queue with limited number of retrials

Computers & Operations Research, 2010
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Yang Woo Shin, Dug Hee Moon
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Stability Analysis of a Multi-class Retrial Queue with General Retrials and Classical Retrial Policy

2021 28th Conference of Open Innovations Association (FRUCT), 2021
We deal with a single server multi-class retrial model, feed by Poisson input. The system is considered under classical retrial policy, while inter-retrial times are class dependent and generally distributed. Such systems have various applications like multi-access protocols or cellular mobile networks, where blocked messages are sent again after some ...
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Multiclass Retrial Systems with Constant Retrial Rates

2021
In a loss queueing system, a customer facing a busy server upon arrival (a blocked customer) leaves the system forever without waiting for service. However, in many applications, the blocked customers leaving the system may retry to enter service after some random time period.
Evsey Morozov, Bart Steyaert
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On the stability of retrial queues

Queueing Systems, 1997
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Eitan Altman, Aleksandr A. Borovkov
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Estimation of retrial rate in a retrial queue

Queueing Systems, 1995
Describing the time evolution of a purely exponential retrial queue by a two-dimensional vector (number of call attempts since last departure, number of calls in retrial queue) yields a nonstandard Markovian description of the system's time evolution. The second coordinate of this process determines essentially the retrial rate, but is not accessible ...
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The Israeli queue with retrials

Queueing Systems, 2014
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Nir Perel, Uri Yechiali
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