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Proceedings Paper

Efficient loss recovery in application overlay stored media streaming
Author(s): Zhi-ping Xie; Geng-sheng Zheng; Gui-ming He
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Paper Abstract

As the Internet does not widely support Internet protocol multicast, and content distribution networks are costly, application overlay has emerged as an alternative for deploying large scale streaming systems. Loss recovery in such architecture is a great challenge because of the correlation of packet losses results from the relaying nature, the variation of accumulated loss rates, and the dynamics of overlay structure, which is inevitable. Since each overlay node is capable of buffering a certain length of media data it has received, and there exists a temporal dependency between the buffers of nodes along a transmitting path, it is highly desirable to make full use of this buffering capability to carry out loss recovery. To this purpose, a retransmission-based approach is proposed in this paper. First, packet losses at a node are classified into two categories according to whether they can be repaired from the immediate upstream node, then, by making upstream nodes propagate loss information downstream, the proposed scheme enables each node efficiently recognize the nature of the loss it detects, and accordingly determine appropriate repair source, thus suppresses unnecessary retransmission requests. The proposed scheme is supported by theoretical analysis of the temporal dependency between overlay nodes, and its performance is verified by experimental results.

Paper Details

Date Published: 31 July 2006
PDF: 8 pages
Proc. SPIE 5960, Visual Communications and Image Processing 2005, 596008 (31 July 2006); doi: 10.1117/12.631419
Show Author Affiliations
Zhi-ping Xie, Wuhan Univ. (China)
Geng-sheng Zheng, Wuhan Univ. (China)
Gui-ming He, Wuhan Univ. (China)

Published in SPIE Proceedings Vol. 5960:
Visual Communications and Image Processing 2005
Shipeng Li; Fernando Pereira; Heung-Yeung Shum; Andrew G. Tescher, Editor(s)

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