.png){kind=icon}
返回
Analytical Modeling for Delay-Sensitive Video Over WLAN
.png){kind=icon}
PRE
AI
DOI：10.1109/TMM.2011.2173477.png)
.png){kind=icon}
原文求助.png){kind=icon}
分享.png){kind=icon}
收藏
摘要
En 中文
Delay-sensitive video transmission over IEEE 802.11 wireless local area networks (WLANs) is analyzed in a cross-layer optimization framework. The effect of delay constraint on the quality of received packets is studied by analyzing expired-time packet discard rate. Three analytical models are examined and it is shown that M/M/1 model is quite an adequate model for analyzing delay-limited applications such as live video transmission over WLAN. The optimal MAC retry limit corresponding to the minimum total packet loss rate is derived by exploiting both mathematical analysis and NS-2 simulations. We have shown that there is an interaction between packet overflow drop and expired-time packet discard processes in the queue. Subsequently, by introducing the concept of virtual buffer size, we will obtain the optimal buffer size in order to avoid packet overflow drop. We finally introduced a simple and yet effective real-time algorithm for retry-limit adaptation over IEEE 802.11 MAC in order to maintain a loss protection for delay-critical video traffic transmission, and showed that the average link-layer throughput can be improved by using our adaptive scheme.
Keyword:
Cross-layer
delay
expired-time
retransmission
video
wireless local area network (WLAN)
AI总结
对已上传原文的论文进行重点信息的提取，主要内容包括：简要概述、研究摘要、背景介绍、关键亮点、图文解析、展望与总结。
期刊
IF:
9.7
论文数:
4.6K
被引数:
2.4W
机构
引用论文
.png){kind=icon}
分享收藏Adaptive cross-layer protection strategies for robust scalable video transmission over 802.11 WLANs802.11 wlan上鲁棒可伸缩视频传输的自适应跨层保护策略
PREAI
分享收藏
查看更多内容