A CROSS-LAYER H.264/AVC VIDEO TRANSMISSION METHOD OVER WIRELESS OFDM
This paper focuses on the issue of cross-layer control for H.264/AVC video transmission over OFDM. Jointly considering the Error Resilient (ER) tools provided by H.264/AVC and the characteristics of OFDM channels, a cross-layer scheme is proposed, in which a cross-layer allocator is used to allocate channel resources for different priority video data transmission, and feedback transmission status information to H.264/AVC encoder for error resilient encoding. By allocation, a 3-D interleaving is implemented to improve the reliance of the communication, and a crosslayer feedback is operated to inform the encoder for a more resilient coding processing to obtain optimal transmission quality. The experimental results indicate that the proposed scheme can dramatically improve the received video quality over wireless OFDM.
Yanzhuo Ma Yilin Chang
National Key Lab.on ISN, Xidian University, Xi’an, Shaanxi, 710071, China
国际会议
首届无线通信跨层设计国际学术研讨会(1st International Workshop on Cross Layer Design)
济南
英文
1-5
2007-09-20（万方平台首次上网日期，不代表论文的发表时间）