CAC and routing for multi-service networks with blocked wide-band calls delayed, part I
exact link MDP framework
Document identifier: oai:dalea.du.se:1816
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10.1002/ett.1056Keyword: Natural Sciences,
Computer and Information Sciences,
Naturvetenskap,
Data- och informationsvetenskap,
Call admission control and routing of delayed calls (exact MDP model)Publication year: 2006Relevant Sustainable Development Goals (SDGs):
The SDG label(s) above have been assigned by OSDG.aiAbstract: In this paper, we study the call admission control (CAC) and routing issue in multi-service networks. Two categories of calls are considered: a narrow-band (NB) with blocked calls cleared and a wide-band (WB) with blocked calls delayed. The objective function is formulated as reward maximisation with penalty for delay. The optimisation is subject to quality of service (QoS) constraints and, possibly, grade of service (GoS) constraints. A suboptimal solution is achieved by applying Markov decision process (MDP) theory together with a two-level approximation. First, the network is decomposed into a set of links assumed to have independent Markov and reward processes respectively. Second, the dimensions of the link Markov and reward processes are reduced by aggregation of the call classes into call categories. The CAC and routing policy is computed by the policy iteration algorithm from MDP theory. The numerical results show that the proposed CAC and routing method, based on the exact link MDP framework, is able to find an efficient trade-off between reward loss and average call set-up delay, outperforming conventional methods such as the least loaded routing (LLR).
Authors
Ernst Nordström
Högskolan Dalarna; Datateknik
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Zbigniew Dziong
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identifier: oai:dalea.du.se:1816
datestamp: 2021-04-15T13:28:59Z
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10.1002/ett.1056
titleInfo:
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lang: eng
title: CAC and routing for multi-service networks with blocked wide-band calls delayed part I
subTitle: exact link MDP framework
abstract: In this paper we study the call admission control (CAC) and routing issue in multi-service networks. Two categories of calls are considered: a narrow-band (NB) with blocked calls cleared and a wide-band (WB) with blocked calls delayed. The objective function is formulated as reward maximisation with penalty for delay. The optimisation is subject to quality of service (QoS) constraints and possibly grade of service (GoS) constraints. A suboptimal solution is achieved by applying Markov decision process (MDP) theory together with a two-level approximation. First the network is decomposed into a set of links assumed to have independent Markov and reward processes respectively. Second the dimensions of the link Markov and reward processes are reduced by aggregation of the call classes into call categories. The CAC and routing policy is computed by the policy iteration algorithm from MDP theory. The numerical results show that the proposed CAC and routing method based on the exact link MDP framework is able to find an efficient trade-off between reward loss and average call set-up delay outperforming conventional methods such as the least loaded routing (LLR).
subject:
@attributes:
lang: eng
authority: uka.se
topic:
Natural Sciences
Computer and Information Sciences
@attributes:
lang: swe
authority: uka.se
topic:
Naturvetenskap
Data- och informationsvetenskap
@attributes:
lang: eng
topic: Call admission control and routing of delayed calls (exact MDP model)
language:
languageTerm: eng
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publication/journal-article
ref
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Published
2
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Nordström
Ernst
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affiliation:
Högskolan Dalarna
Datateknik
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Dziong
Zbigniew
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dateIssued: 2006
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title: European transactions on telecommunications
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1124-318X
2161-3915
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number: 17
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