保证变比特率(VBR) 视频流在IP 网络上的平滑传输一直是多媒体通信领域研究的热点.
传统的PCR 协助的恒定速率传输方法利用了嵌入到视频码流中的程序参考时钟(PCR) …

通过分析MPEG2 视频流的自相似特性, 提出了一种确定固定时长的控制间隔的方法. 此外,
在接入设备具有较大缓存的网络中, 拥塞将首先表现为时延的增加, 而不是丢包的出现 …

As the use of real-time multimedia applications increases, a considerable amount of
“greedy” UDP traffic would easily dominate network bandwidth and packet loss. As a result …

More and more high definition and high quality videos are nowadays stored on Internet but
they are not accessible for everybody because high and stable bandwidth is needed to …

The rising popularity of data calls and the slowed global economy have posed a challenge
to voice data networking—how to satisfy the growing user demand for VoIP calls under …

With the proliferation of real-time multimedia applications, bandwidth available to TCP
connections is oppressed by “greedy” UDP traffic and the performance of TCP connections …

Cette thèse traite de l'amélioration du transfert de données, d'une part sur les réseaux sans-
fils et d'autre part pour des données continues telles que la vidéo. Pour améliorer les …

This document presents the research activities I have been conducting since september
2003, when I was hired as assistant professor (maıtre de conférences) and started to work in …