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Conference Paper: Enhancing AQM to combat wireless losses

TitleEnhancing AQM to combat wireless losses
Authors
KeywordsActive queue management algorithms
Backoffs
Integral controllers
Internal model principle
Network scenario
Issue Date2012
PublisherInstitute of Electrical and Electronics Engineers. The Journal's web site is located at http://ieeexplore.ieee.org/xpl/conhome.jsp?punumber=1000600
Citation
The 20th International Workshop on Quality of Service (IEEE/ACM IWQoS 2012), Coimbra, Portugal, 4-5 June 2012. In International Workshop on Quality of Service, 2012, p. 1-9 How to Cite?
AbstractIn order to maintain a small, stable backlog at the router buffer, active queue management (AQM) algorithms drop packets probabilistically at the onset of congestion, leading to backoffs by Transmission Control Protocol (TCP) flows. However, wireless losses may be misinterpreted as congestive losses and induce spurious backoffs. In this paper, we raise the basic question: Can AQM maintain a stable, small backlog under wireless losses? We find that the representative AQM, random early detection (RED), fails to maintain a stable backlog under time-varying wireless losses. We find that the key to resolving the problem is to robustly track the backlog to a preset reference level, and apply the control-theoretic vehicle, internal model principle, to realize such tracking. We further devise the integral controller (IC) as an embodiment of the principle. Our simulation results show that IC is robust against time-varying wireless losses under various network scenarios. © 2012 IEEE.
Persistent Identifierhttp://hdl.handle.net/10722/165303
ISBN
ISSN

 

DC FieldValueLanguage
dc.contributor.authorLai, Cen_US
dc.contributor.authorLeung, KCen_US
dc.contributor.authorLi, VOKen_US
dc.date.accessioned2012-09-20T08:16:51Z-
dc.date.available2012-09-20T08:16:51Z-
dc.date.issued2012en_US
dc.identifier.citationThe 20th International Workshop on Quality of Service (IEEE/ACM IWQoS 2012), Coimbra, Portugal, 4-5 June 2012. In International Workshop on Quality of Service, 2012, p. 1-9en_US
dc.identifier.isbn978-1-4673-1298-1-
dc.identifier.issn1548-615X-
dc.identifier.urihttp://hdl.handle.net/10722/165303-
dc.description.abstractIn order to maintain a small, stable backlog at the router buffer, active queue management (AQM) algorithms drop packets probabilistically at the onset of congestion, leading to backoffs by Transmission Control Protocol (TCP) flows. However, wireless losses may be misinterpreted as congestive losses and induce spurious backoffs. In this paper, we raise the basic question: Can AQM maintain a stable, small backlog under wireless losses? We find that the representative AQM, random early detection (RED), fails to maintain a stable backlog under time-varying wireless losses. We find that the key to resolving the problem is to robustly track the backlog to a preset reference level, and apply the control-theoretic vehicle, internal model principle, to realize such tracking. We further devise the integral controller (IC) as an embodiment of the principle. Our simulation results show that IC is robust against time-varying wireless losses under various network scenarios. © 2012 IEEE.-
dc.languageengen_US
dc.publisherInstitute of Electrical and Electronics Engineers. The Journal's web site is located at http://ieeexplore.ieee.org/xpl/conhome.jsp?punumber=1000600-
dc.relation.ispartofInternational Workshop on Quality of Serviceen_US
dc.rightsInternational Workshop on Quality of Service. Copyright © Institute of Electrical and Electronics Engineers.-
dc.rights©2012 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.-
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.subjectActive queue management algorithms-
dc.subjectBackoffs-
dc.subjectIntegral controllers-
dc.subjectInternal model principle-
dc.subjectNetwork scenario-
dc.titleEnhancing AQM to combat wireless lossesen_US
dc.typeConference_Paperen_US
dc.identifier.emailLai, C: laichengdi@eee.hku.hken_US
dc.identifier.emailLeung, KC: kcleung@eee.hku.hken_US
dc.identifier.emailLi, VOK: vli@eee.hku.hk-
dc.identifier.authorityLeung, KC=rp00147en_US
dc.identifier.authorityLi, VOK=rp00150en_US
dc.description.naturepublished_or_final_version-
dc.identifier.doi10.1109/IWQoS.2012.6245989-
dc.identifier.scopuseid_2-s2.0-84866626336-
dc.identifier.hkuros210460en_US
dc.identifier.hkuros201149-
dc.identifier.spage1-
dc.identifier.epage9-
dc.publisher.placeUnited States-
dc.customcontrol.immutablesml 130508-

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