基于FST-MDC的P2P网络视频流高服务质量
High Quality of Service on Video Streaming in P2P Networks using FST-MDC
摘要：
视频流应用新近吸引了分发网络中的大量参与者。传统的基于客户端-服务器的视频流解决方案在服务器上维持宝贵的带宽供应率。近来，已经组织了若干P2P流传输系统以在无线网络上以降低的服务器成本提供点播和实况视频流传输服务。对等计算（Peer-to-Peer，P2P）是构建分布式网络应用的一种新模式。典型的差错控制技术不是很好地匹配的，另一方面，对于视频传输，通过无线网络和IP。这两个事实结合在一起，提供了一套新的技术（错误隐藏）的发展，能够处理视频系统中的传输错误的基本动机。在本文中，我们提出了一种灵活的多描述编码方法命名为灵活的时空（FST），提高了错误的弹性在独立路径的帧丢失的可能性。该算法在接收端引入了空域和时域相结合的隐藏技术，更有效地隐藏了丢失的帧。实验结果表明，该方法在P2P无线网络中获得了合理的视频质量性能。
英文摘要：
Video streaming applications have newly attracted a large number of participants in a distribution network. Traditional client-server based video streaming solutions sustain precious bandwidth provision rate on the server. Recently, several P2P streaming systems have been organized to provide on-demand and live video streaming services on the wireless network at reduced server cost. Peer-to-Peer (P2P) computing is a new pattern to construct disseminated network applications. Typical error control techniques are not very well matched and on the other hand error prone channels has increased greatly for video transmission e.g., over wireless networks and IP. These two facts united together provided the essential motivation for the development of a new set of techniques (error concealment) capable of dealing with transmission errors in video systems. In this paper, we propose an flexible multiple description coding method named as Flexible Spatial-Temporal (FST) which improves error resilience in the sense of frame loss possibilities over independent paths. It introduces combination of both spatial and temporal concealment technique at the receiver and to conceal the lost frames more effectively. Experimental results show that, proposed approach attains reasonable quality of video performance over P2P wireless network.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
