文章基本信息

标题：Smoothing and Modeling of Video Transmission Rates Over a QoS Network With Limited Bandwidth Connections
本地全文：下载
作者：Khaled Shuaib ; Farag Sallabi ; Liren Zhang 等
期刊名称：International Journal of Computer Networks & Communications
印刷版ISSN：0975-2293
电子版ISSN：0974-9322
出版年度：2011
卷号：3
期号：3
DOI：10.5121/ijcnc.2011.3310
出版社：Academy & Industry Research Collaboration Center (AIRCC)
摘要：Transmission of video over a limited bandwidth network is challenging due to the natural variability of video, and link characteristics. Video smoothing techniques can be used to facilitate more effective transmission and to preserve better quality. In this paper we develop a semi-optimal video smoothing approach to manage the transmission of MPEG-4 and H.264 video while mapping it to be more suitable for a QoS based network. The proposed technique utilizes a smoothing buffer with pre-defined thresholds to smooth the transmission rates while assuming minimal information about the video to be transmitted. The results obtained showed a significant improvements in transmission rate variability while guaranteeing no buffer overflows or underflows. In addition, a queuing model is developed for the used smoothing algorithm for H.264 video streams with optimized encoding and packetization, utilizing the available H.264 macroblock ordering option
关键词：Video Smoothing; Modeling; Network Performance; QoS.