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Proceedings Paper

An effective packetization algorithm of LT codes for stable video streaming over wireless network
Author(s): Dongju Lee; Wan Kim; Hwangjun Song
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Paper Abstract

In this work, we propose an effective And-Or tree based packetization algorithm of Luby Transform (LT) codes to provide stable video streaming services by minimizing the deterioration of video streaming service quality caused by lost packets over error-prone wireless network. To accomplish our goal, the proposed packetization algorithm considers the relationships among encoded symbols of LT codes based on an And-Or tree analysis tool, and then puts the these encoded symbols into packets to minimize the packet loss effect during packet transmission and improve the decoding success rate of LT codes by reducing the correlations among packets. We conduct a mathematical analysis to prove performance of our packetization algorithm of LT codes compared with conventional packetization algorithm. Finally, the proposed system is fully implemented in Java and C/C++, and widely tested to show that the proposed packetization algorithm works reasonably well. The experimental results are provided to demonstrate that the proposed packetization algorithm supports more stable video streaming services with higher peak signal-to-nose ratio (PSNR) than the conventional packetization algorithm with various packet loss patterns, including random and burst packet loss patterns.

Paper Details

Date Published: 24 September 2011
PDF: 10 pages
Proc. SPIE 8135, Applications of Digital Image Processing XXXIV, 81350P (24 September 2011); doi: 10.1117/12.892682
Show Author Affiliations
Dongju Lee, Pohang Univ. of Science and Technology (Korea, Republic of)
Wan Kim, Pohang Univ. of Science and Technology (Korea, Republic of)
Hwangjun Song, Pohang Univ. of Science and Technology (Korea, Republic of)


Published in SPIE Proceedings Vol. 8135:
Applications of Digital Image Processing XXXIV
Andrew G. Tescher, Editor(s)

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