标题: | 支援无线实况媒体串流与品质服务最佳化之同侪式平台设计与分析---在同侪式串流平台上之联合视讯与网路编码技术 Joint Video-Network Coding Techniques over P2P Streaming Platform |
作者: | 萧旭峰 Hsiao Hsu-Feng 国立交通大学资讯工程学系(所) |
关键字: | 联合视讯与网路编码;网路编码;可调式视讯编码;通道编码;网路电视;同侪式网路;Joint Video-Network Coding;Network Coding;Scalable Video Coding;ChannelCoding;IPTV;P2P Network |
公开日期: | 2008 |
摘要: | 在一个具流动性的同侪式(P2P) 实况媒体串流平台架构环境裡,由于有线/无线网路通 道与分流节点随时间的变迁性,提供服务品质和经验品质保障的视讯/网路编码技术具有 相当的挑战性,也是影音娱樂平台成功的重要关键之一。随着多媒体/通道编码技术以及 网路通讯的演进,諸如 ITU-T 正在制订中之网路电视或是YouTube/Joost 之大众下载随 选视讯串流已成为近年來无論是学术研究或是工产业瞩目之发展重点。本子计画的主要 目的,在于同侪式媒体串流平台架构的考虑下研发适合之聯合视讯与网路编码技术 (Joint Video-Network Coding),在有限通道频宽的限制下增加有效串流流量,缩减串流 的延迟时间与对抗可能的惡劣传输环境,以使随选视讯或甚至实况网路媒体的品质在日 益普遍之異质有线/无线网路/广播的传输环境下更有保障。在视讯方面,搭配可调式视 讯编码串流技术,进行相对应结合之网路编码,让每个客户端依据其各自之通讯环境而 接收并分享适合自己环境之多媒体内容服务,在P2P 的 overlay networks 下以网路编码 的观点,揉合各自所接收之内容,扩大点对点之间的频宽传送率并进行错误回復解码, 以利于使用者对视讯串流时间延迟与影像品质的要求,并可助于缩短频道切换之间的等 待时间。 In a peer-to-peer live media streaming platform over wired and wireless environments, it is rather challenging to fulfill the needs for Quality of Service and Quality of Experience requirements due to frequent topology updates of P2P overlay network and dynamic channel fluctuation. The required techniques are also the key to the success of such entertainment platforms. Media streaming if entertainment systems, such as IPTV which is being standardized by ITU-T and social networked streaming, like YouTube, have been an emerging research and industrial emphasis due to the great progress of network communications and joint multimedia/channel coding technologies. The major objective of this research project is to study and develop Joint Video-Network Coding technologies in order to increase effective streaming throughput, to minimize the streaming delay, and to mitigate packet loss over heterogeneous networks. The proposed network coding is in particular to be combined with scalable video coding such that every client can download and upload network coded blocks of appropriate streaming contents based on localized channel conditions with the consideration of quality of service and quality of experience, even when a client surfs between video channels. |
官方说明文件#: | NSC97-2221-E009-054 |
URI: | http://hdl.handle.net/11536/102310 https://www.grb.gov.tw/search/planDetail?id=1675059&docId=288074 |
显示于类别: | Research Plans |