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IEICE TRANSACTIONS on Communications

QoS Multicast Protocol for Live Streaming

Yuthapong SOMCHIT, Aki KOBAYASHI, Katsunori YAMAOKA, Yoshinori SAKAI

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Summary :

Live streaming media are delay sensitive and have limited allowable delays. Current conventional multicast protocols do not have a loss retransmission mechanism. Even though several reliable multicast protocols with retransmission mechanisms have been proposed, the long delay and high packet loss rate make them inefficient for live streaming. This paper proposes a multicast protocol focusing on the allowable delay called the QoS Multicast for Live Streaming (QMLS) protocol. QMLS routers are placed along the multicast tree to detect and retransmit lost packets. We propose a method that enables data recovery to be done immediately after lost packets are detected by the QMLS router and a method that reduces the unnecessary packets sent to end receivers. This paper discusses the mathematical analysis of the proposed protocol and compares it with other multicast protocols. The results reveal that our protocol is more effective in live streaming. Finally, we do a simulation to evaluate its performance and study the effect of consecutive losses. The simulation reveals that consecutive losses can slightly increase losses with our protocol.

Publication
IEICE TRANSACTIONS on Communications Vol.E88-B No.3 pp.1128-1138
Publication Date
2005/03/01
Publicized
Online ISSN
DOI
10.1093/ietcom/e88-b.3.1128
Type of Manuscript
PAPER
Category
Network

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