Feedback-based intra refresh scheme for wireless video transmission

被引：0
|
作者：
Feng, XB [1 ]
Xie, JY [1 ]
机构：
[1] Shanghai Jiao Tong Univ, Res Grp Control Engn & Network Technol, Shanghai 200030, Peoples R China
来源：
CHINESE JOURNAL OF ELECTRONICS | 2004年 / 13卷 / 04期
关键词：
intra refresh; rate-distortion; error resilience; wireless channel model; feedback;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
This paper investigates the intra refresh techniques for video transmission in wireless scenario. Two-state Markov model is proposed to simulate the fading wireless channel. Taking feedback information into account, we analyze the channel distortion due to the burst errors. An improved intra refresh scheme is then proposed for optimal selection of coding mode for each Macroblock (MB) in rate-distortion framework. The proposed scheme can stop error propagation and reduce channel distortion effectively. Simulations using TMN10 show that our scheme obtains improved performance with respect to error resilience for wireless video communication.
引用
收藏
页码：646 / 650
页数：5
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