A novel design and analysis of cross-layer error-control for h.264 video over wireless LAN

Authors:
Jeong-Yong Choi;Jitae Shin
Affiliations:
School of Information and Communication Engineering, Sungkyunkwan University, Suwon, Korea;School of Information and Communication Engineering, Sungkyunkwan University, Suwon, Korea
Venue:
WWIC'06 Proceedings of the 4th international conference on Wired/Wireless Internet Communications
Year:
2006

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Abstract

Efficient H.264 video transmission over wireless/mobile networks, which is used as a dominant video coding standard in Digital Multimedia Broadcasting (DMB) and in other advanced video conferencing, becomes dominant. However, wireless video transmission suffers from deficient wireless channel conditions such as high bit error rate, error bursts due to channel fading and bandwidth limitations. In this paper, a novel design and analysis of unified error-control with cross-layer interaction over IEEE 802.11e Wireless LAN, in order to improve error protection performance, is proposed. This framework combines cross-layer error protection techniques, i.e., error correction code in the link/MAC layer, erasure code in the application layer and automatic retransmission across the link/MAC layer and the application layer. The performance of the proposed scheme in comparison to the generic scheme is demonstrated by simulation.