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dc.contributor.authorMcDonald, Ian
dc.contributor.authorNelson, Richard
dc.coverage.spatialConference held at Cardiff, Walesen_NZ
dc.date.accessioned2013-10-13T20:52:22Z
dc.date.available2013-10-13T20:52:22Z
dc.date.copyright2008-09
dc.date.issued2008
dc.identifier.citationMcDonald, I., Nelson, R. (2008). Application-Level QoS: Improving video conferencing quality through sending the best packet next. In Proceedings of the Second International Conference on Next Generation Mobile Applications, Services and Technologies, 16-19 September 2008, Cardiff, Wales, United Kingdom (pp. 507-513). Washington, DC, USA: IEEE.en_NZ
dc.identifier.urihttps://hdl.handle.net/10289/8066
dc.description.abstractIn a traditional network stack, data from an application is transmitted in the order that it is received. An algorithm is proposed where information about the priority of packets and expiry times is used by the transport layer to reorder or discard packets at the time of transmission to optimise the use of available bandwidth. This can be used for video conferencing to prioritise important data. This scheme is implemented and compared to unmodified datagram congestion control protocol (DCCP). This algorithm is implemented as an interface to DCCP and tested using traffic modelled on video conferencing software. The results show improvement can be made to video conferencing during periods of congestion - substantially more audio packets arrive on time with the algorithm, which leads to higher quality video conferencing. In many cases video packet arrival rate also increases and adopting the algorithm gives improvements to video conferencing that are better than using unmodified queuing for DCCP. The algorithm proposed is implemented on the server only, so benefits can be obtained on the client without changes being required to the client.en_NZ
dc.format.mimetypeapplication/pdf
dc.language.isoenen_NZ
dc.publisherIEEEen_NZ
dc.relation.ispartof2008 The Second International Conference on Next Generation Mobile Applications, Services, and Technologies
dc.relation.urihttp://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=4756479&abstractAccess=no&userType=insten_NZ
dc.rights© 2008 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.en_NZ
dc.source2nd International Conference on Next Generation Mobile Applications, Services and Technologiesen_NZ
dc.subjectcomputer scienceen_NZ
dc.titleApplication-Level QoS: Improving video conferencing quality through sending the best packet nexten_NZ
dc.typeConference Contributionen_NZ
dc.identifier.doi10.1109/NGMAST.2008.16en_NZ
dc.relation.isPartOfProc Second International Conference on Next Generation Mobile Applications, Services and Technologies 2008 (NGMAST)en_NZ
pubs.begin-page507en_NZ
pubs.elements-id18659
pubs.end-page513en_NZ
pubs.finish-date2008-09-19en_NZ
pubs.start-date2008-09-16en_NZ


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