Analysis of Discrete-Time Queues with Branching Arrivals

We consider a discrete-time single server queueing system, where arrivals stem from a multi-type Galton–Watson branching process with migration. This branching-type arrival process exhibits intricate correlation, and the performance of the corresponding queueing process can be assessed analytically....

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Main Authors: Dieter Fiems, Koen De Turck
Format: Article
Language:English
Published: MDPI AG 2023-02-01
Series:Mathematics
Subjects:
Online Access:https://www.mdpi.com/2227-7390/11/4/1020
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author Dieter Fiems
Koen De Turck
author_facet Dieter Fiems
Koen De Turck
author_sort Dieter Fiems
collection DOAJ
description We consider a discrete-time single server queueing system, where arrivals stem from a multi-type Galton–Watson branching process with migration. This branching-type arrival process exhibits intricate correlation, and the performance of the corresponding queueing process can be assessed analytically. We find closed-form expressions for various moments of both the queue content and packet delay. Close inspection of the arrival process at hand, however, reveals that sample paths consist of large independent bursts of arrivals followed by geometrically distributed periods without arrivals. Allowing for non-geometric periods without arrivals, and correlated bursts, we apply <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi>π</mi></semantics></math></inline-formula>-thinning on the arrival process. As no closed-form expressions can be obtained for the performance of the corresponding queueing system, we focus on approximations of the main performance measures in the light and heavy traffic regimes.
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spelling doaj.art-83e85a1f3abe4309ba2f430e4ff3bf242023-11-16T21:57:15ZengMDPI AGMathematics2227-73902023-02-01114102010.3390/math11041020Analysis of Discrete-Time Queues with Branching ArrivalsDieter Fiems0Koen De Turck1Department Telin, Ghent University, B-9000 Gent, BelgiumDepartment Telin, Ghent University, B-9000 Gent, BelgiumWe consider a discrete-time single server queueing system, where arrivals stem from a multi-type Galton–Watson branching process with migration. This branching-type arrival process exhibits intricate correlation, and the performance of the corresponding queueing process can be assessed analytically. We find closed-form expressions for various moments of both the queue content and packet delay. Close inspection of the arrival process at hand, however, reveals that sample paths consist of large independent bursts of arrivals followed by geometrically distributed periods without arrivals. Allowing for non-geometric periods without arrivals, and correlated bursts, we apply <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi>π</mi></semantics></math></inline-formula>-thinning on the arrival process. As no closed-form expressions can be obtained for the performance of the corresponding queueing system, we focus on approximations of the main performance measures in the light and heavy traffic regimes.https://www.mdpi.com/2227-7390/11/4/1020discrete-time queuearrival correlationbranching process
spellingShingle Dieter Fiems
Koen De Turck
Analysis of Discrete-Time Queues with Branching Arrivals
Mathematics
discrete-time queue
arrival correlation
branching process
title Analysis of Discrete-Time Queues with Branching Arrivals
title_full Analysis of Discrete-Time Queues with Branching Arrivals
title_fullStr Analysis of Discrete-Time Queues with Branching Arrivals
title_full_unstemmed Analysis of Discrete-Time Queues with Branching Arrivals
title_short Analysis of Discrete-Time Queues with Branching Arrivals
title_sort analysis of discrete time queues with branching arrivals
topic discrete-time queue
arrival correlation
branching process
url https://www.mdpi.com/2227-7390/11/4/1020
work_keys_str_mv AT dieterfiems analysisofdiscretetimequeueswithbranchingarrivals
AT koendeturck analysisofdiscretetimequeueswithbranchingarrivals