Apply network coding for H.264/SVC multicasting

Hui Wang; C.-C. Jay Kuo

doi:10.1117/12.795665

13 September 2008 Apply network coding for H.264/SVC multicasting

Hui Wang, C.-C. Jay Kuo

Proceedings Volume 7073, Applications of Digital Image Processing XXXI; 70730J (2008) https://doi.org/10.1117/12.795665
Event: Optical Engineering + Applications, 2008, San Diego, California, United States

Abstract

In a packet erasure network environment, video streaming benefits from error control in two ways to achieve graceful degradation. The first approach is application-level (or the link-level) forward error-correction (FEC) to provide erasure protection. The second error control approach is error concealment at the decoder end to compensate lost packets. A large amount of research work has been done in the above two areas. More recently, network coding (NC) techniques have been proposed for efficient data multicast over networks. It was shown in our previous work that multicast video streaming benefits from NC for its throughput improvement. An algebraic model is given to analyze the performance in this work. By exploiting the linear combination of video packets along nodes in a network and the SVC video format, the system achieves path diversity automatically and enables efficient video delivery to heterogeneous receivers in packet erasure channels. The application of network coding can protect video packets against the erasure network environment. However, the rank defficiency problem of random linear network coding makes the error concealment inefficiently. It is shown by computer simulation that the proposed NC video multicast scheme enables heterogenous receiving according to their capacity constraints. But it needs special designing to improve the video transmission performance when applying network coding.

Citation Download Citation

Hui Wang and C.-C. Jay Kuo "Apply network coding for H.264/SVC multicasting", Proc. SPIE 7073, Applications of Digital Image Processing XXXI, 70730J (13 September 2008); https://doi.org/10.1117/12.795665

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