Rate-distortion optimized frame dropping and scheduling for multi-user conversational and streaming

来源 :Journal of Zhejiang University Science A(Science in Engineer | 被引量 : 0次 | 上传用户:op0034
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
We propose a Rate-Distortion (RD) optimized strategy for frame-dropping and scheduling of multi-user conversa- tional and streaming videos. We consider a scenario where conversational and streaming videos share the forwarding resources at a network node. Two buffers are setup on the node to temporarily store the packets for these two types of video applications. For streaming video, a big buffer is used as the associated delay constraint of the application is moderate and a very small buffer is used for conversational video to ensure that the forwarding delay of every packet is limited. A scheduler is located behind these two buffers that dynamically assigns transmission slots on the outgoing link to the two buffers. Rate-distortion side information is used to perform RD-optimized frame dropping in case of node overload. Sharing the data rate on the outgoing link between the con- versational and the streaming videos is done either based on the fullness of the two associated buffers or on the mean incoming rates of the respective videos. Simulation results showed that our proposed RD-optimized frame dropping and scheduling ap- proach provides significant improvements in performance over the popular priority-based random dropping (PRD) technique. We propose a Rate-Distortion (RD) optimized strategy for frame-dropping and scheduling of multi-user conversa- tional and streaming videos. We consider a scenario where conversational and streaming videos share the forwarding resources at a network node. Two buffers are setup on the node to temporarily store the packets for these two types of video applications. For streaming video, a big buffer is used as the associated delay constraint of the application is moderate and a very small buffer is used for conversational video to ensure that the forwarding delay of every packet is limited. A scheduler is located behind these two buffers that will dynamically assigns transmission slots on the outgoing link to the two buffers. Rate-distortion side information is used to perform RD-optimized frame dropping in case of node overload. Sharing the data rate on the outgoing link between the con- versational and the streaming videos is done either based on the fullness of the two associated buffers or on the mean incoming rates of the particular videos. Simulation results showed that we proposed RD-optimized frame dropping and scheduling ap-proach provide significant improvements in performance over the popular priority-based random dropping (PRD) technique.
其他文献
随着4万亿投资的进一步实施以及装备制造业振兴规划对行业的拉动,公司对下半年行业销售预期较高。看好公司的中长期发展,如果成功实施再融资,将会大大增强公司的发展潜力。今
会议
食品外观的四大特征是色、香、味、型,而第一个特征就是色。食品按其颜色与营养特点大致可分为白色食品、红色食品、青色食品和黑色食品四大类。 Four main characteristic
会议
会议
会议
目的:探究分析桂枝茯苓汤加减治疗慢性盆腔炎的疗效及复发率.方法:选取我院2017年10月到2019年2月收治的80例慢性盆腔炎患者作为本次研究的观察对象,利用随机分组的方法将其
会议
岗位核心能力的培养是提高护生职业竞争力、体现护理教育目标和特色的关键,因此,在护理专业教学中,我们应以护理岗位核心能力为基础,对护理学课程设置、师资培养、教学方法、
会议