Detail publikačního výsledku

Scalability Issues with the Hierarchical Feedback Aggregation for Large-Scale IPTV Systems

KOMOSNÝ, D.; KATHIRAVELU, G.; JELÍNEK, M.; BURGET, R.

Originální název

Scalability Issues with the Hierarchical Feedback Aggregation for Large-Scale IPTV Systems

Anglický název

Scalability Issues with the Hierarchical Feedback Aggregation for Large-Scale IPTV Systems

Druh

Stať ve sborníku v databázi WoS či Scopus

Originální abstrakt

Hierarchical feedback aggregation is an enhancement to the RTP/RTCP (Real Time Protocol/Real Time Control Protocol) when the SSM (Source-Specific Multicast) is employed. The main purpose of feedback transmission is to provide information about media delivery and information needed for RTP/RTCP session management. This paper deals with a tree structure for hierarchical feedback aggregation specifically designed for use in large-scale IPTV systems. This tree consists of end nodes and feedback targets. A feedback target collects feedback from a group of nodes, which are either end nodes or other feedback targets. The feedback gathering process continues up to the main feedback target, which is the top of the tree. The maximum number of nodes below a feedback target in the tree hierarchy should be known in order to avoid overloading the feedback target. For the purpose of estimating this maximum number, we used PlanetLab. The use of PlanetLab allowed us involving many more nodes spread around the globe in measurement. Finally, we propose the maximum recommended number of nodes below a feedback target in the tree hierarchy.

Anglický abstrakt

Hierarchical feedback aggregation is an enhancement to the RTP/RTCP (Real Time Protocol/Real Time Control Protocol) when the SSM (Source-Specific Multicast) is employed. The main purpose of feedback transmission is to provide information about media delivery and information needed for RTP/RTCP session management. This paper deals with a tree structure for hierarchical feedback aggregation specifically designed for use in large-scale IPTV systems. This tree consists of end nodes and feedback targets. A feedback target collects feedback from a group of nodes, which are either end nodes or other feedback targets. The feedback gathering process continues up to the main feedback target, which is the top of the tree. The maximum number of nodes below a feedback target in the tree hierarchy should be known in order to avoid overloading the feedback target. For the purpose of estimating this maximum number, we used PlanetLab. The use of PlanetLab allowed us involving many more nodes spread around the globe in measurement. Finally, we propose the maximum recommended number of nodes below a feedback target in the tree hierarchy.

Klíčová slova

Multicast, Feedback, Hierarchical Tree, IPTV

Klíčová slova v angličtině

Multicast, Feedback, Hierarchical Tree, IPTV

Autoři

KOMOSNÝ, D.; KATHIRAVELU, G.; JELÍNEK, M.; BURGET, R.

Rok RIV

2010

Vydáno

08.07.2008

Nakladatel

Centre for Information Security and Network Research, University of Plymouth, UK

Místo

Plymouth

ISBN

978-1-84102-188-1

Kniha

Proceedings of the Seventh International Network Conference

Strany od

15

Strany do

26

Strany počet

12

BibTex

@inproceedings{BUT27035,
  author="Dan {Komosný} and Kathiravelu {Ganeshan} and Mojmír {Jelínek} and Radim {Burget}",
  title="Scalability Issues with the Hierarchical Feedback Aggregation for Large-Scale IPTV Systems",
  booktitle="Proceedings of the Seventh International Network Conference",
  year="2008",
  pages="15--26",
  publisher="Centre for Information Security and Network Research, University of Plymouth, UK",
  address="Plymouth",
  isbn="978-1-84102-188-1"
}