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A Simple Router-Supported Congestion Control Scheme for Multiresolution Multicasting
Jönköping University, School of Engineering, JTH. Research area Robust Embedded Systems. (Datakommunikation)
Jönköping University, School of Engineering, JTH. Research area Robust Embedded Systems. (Datakommunikation)
Jönköping University, School of Engineering, JTH. Research area Robust Embedded Systems. Jönköping University, School of Engineering, JTH, Computer and Electrical Engineering. (Datakommunikation)
2004 (English)In: The Second Swedish National Computer Networking Workshop, SNCNW 2004, Karlstad University, Sweden, 23-24 November, 2004, 2004, p. 143-147Conference paper, Published paper (Refereed)
Abstract [en]

For multimedia communication with multiple end users, the multicast distribution technique offers a bandwidth efficient solution compared to unicast. One of the most promising multicast approaches to date is the multiresolution multicast framework, which deals with the heterogeneity problems in IP-networks. It does not however deal with the congestion control issue, that higher priority packets can be dropped before lower priority ones. To deal with this problem router-support in the network is needed. Most of the proposed multi-rate routersupported schemes have complexity problems, in terms of memory and processing time requirements. In this paper, we propose a simple router-supported scheme, based on priority dropping that is further enhanced by combining it with receiver-driven layered multicast. This combination filters lower priority packets, and lets the receiver adjust the layer subscription rate. The routers do not need to maintain extra state information and no signaling is necessary between routers. Simulation results indicate a much better received picture quality compared with receiverdriven layered multicast during rate convergence.

Place, publisher, year, edition, pages
2004. p. 143-147
Identifiers
URN: urn:nbn:se:hj:diva-5593OAI: oai:DiVA.org:hj-5593DiVA, id: diva2:36413
Available from: 2007-08-03 Created: 2007-08-03 Last updated: 2010-03-09Bibliographically approved

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Öberg, LasseXu, YouzhiNohre, Ragnar

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