CAREER: Next-Generation Peer-to-Peer Streaming: Theory and Design

职业：下一代点对点流媒体：理论与设计

• 批准号: 0953682
• 负责人: Yong Liu
• 金额: $ 45万
• 依托单位: New York University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2010
• 资助国家: 美国
• 起止时间: 2010-02-01 至 2017-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0953682&HistoricalAwards=false
• 关键词: CAREER; Next; Generation; Peer; Streaming

Peer-to-Peer (P2P) technology has enabled large-scale streaming services on the Internet. The success of the next-generation P2P streaming systems largely hinges on new designs delivering a higher level of efficiency, robustness and incentives. At the same time, the increasing popularity and high-streaming rate of P2P streaming systems have already generated significant traffic stress inside ISPs' networks. The operations of future P2P streaming systems will have significant impact on the stability and efficiency of the global network infrastructure. The PI and his PhD students are developing new theory and design for the next generation P2P streaming systems. They study the service differentiation in P2P streaming to address peer heterogeneity and provide incentives.They derive the minimum delay bounds for realtime P2P streaming and propose streaming algorithms to approach the bounds. They apply the low-delay streaming algorithms to live video streaming and 3D streaming. They develop ISP-friendly P2P streaming design to largely reduce the traffic stress imposed on ISP networks by P2P streaming applications. They also build prototypes for the proposed new designs. The research of this project will lead to open protocols, software and tools, allowing a multitude of developers, researchers, and companies to expand, improve, and evolve the next-generation P2P streaming systems. Important insights and key techniques developed in this project can also be generalized to study data streaming in general distributed systems, such as Content Delivery Networks and distributed data centers.

点对点（P2P）技术已在Internet上实现了大规模的流媒体服务。下一代P2P流媒体系统的成功主要取决于新设计，从而提供了更高水平的效率，鲁棒性和激励措施。同时，P2P流媒体系统的普及和高流率的速度已经增加了ISPS网络内部的巨大交通压力。未来P2P流媒体系统的运营将对全球网络基础架构的稳定性和效率产生重大影响。 PI和他的博士生正在为下一代P2P流媒体系统开发新的理论和设计。他们研究了P2P流中的服务差异，以解决同行异质性并提供激励措施。它们得出了实时P2P流的最小延迟界限，并提出了流算法以接近边界。他们将低延迟流算法应用于实时视频流和3D流媒体。他们开发了ISP友好的P2P流媒体设计，以很大程度上通过P2P流媒体应用程序减少ISP网络施加的交通压力。他们还为拟议的新设计建立了原型。该项目的研究将导致开放的协议，软件和工具，使许多开发人员，研究人员和公司可以扩展，改进和发展下一代P2P流媒体系统。该项目中开发的重要见解和关键技术也可以推广到在一般分布式系统中（例如内容传递网络和分布式数据中心）中研究数据流。