iSWORD: Instrumented Streaming Research and Testbed

iSWORD：仪表化流媒体研究和测试平台

• 批准号: 0117810
• 负责人: Mary Vernon
• 金额: $ 80.4万
• 依托单位: University of Wisconsin-Madison
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-09-15 至 2006-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0117810&HistoricalAwards=false
• 关键词: iSWORD; Instrumented; Streaming; Research; Testbed

This proposal seeks funding for research in the design, implementation, and instrumentation of newmethods for scalable wide-area on-demand reliable digital (SWORD) streaming. The larger goal of theresearch is to enable new streaming media applications, such as immediate access to a television showwhenever a client anywhere would like to view it, by devising new practical cost-effective methods for on-demand real-time streaming of very popular streaming media content. The key aspects of the research tobe undertaken are:1. The development of innovative practical new reliable multicast techniques that optimize client streamsharing to conserve server and network bandwidth, improve bandwidth cost-sharing, and maximizesystem scalability.2. The design of delivery techniques that work over the Internet or over satellite/cable networks, or anycombination of these network technologies.3. The development of new metrics and models to determine which popular streams or partial streamsshould be cached at regional (or proxy) servers in order to minimize delivery cost for the data.4. The development of new network instrumentation facilities for the streaming media delivery protocolsthat enable deep understanding of the impact of network events and conditions on the performance ofthe protocols.5. The use of the new on-line network instrumentation facilities to develop new streaming methods thatoptimally adapt to current network conditions.6. The development of a novel testbed that allows experimentation with alternative new reliable multicastmethods as well as alternative algorithms for caching streaming content closer to the clients, uses thenew instrumentation facilities, and operates seamlessly and transparently in a live environment withordinary clients accessing widely used media servers over large-scale networks such as Internet2 or theInternet MBONE.

该提案旨在为可扩展广域按需可靠数字（SWORD）流媒体的新方法的设计，实施和仪器化研究提供资金。该研究的更大目标是使新的流媒体应用程序，如立即访问电视节目，无论何时何地，客户端想查看它，通过设计新的实用的成本效益的方法，按需实时流非常流行的流媒体内容。要进行的研究的关键方面是：1。开发创新实用的新可靠组播技术，优化客户端流共享，以节省服务器和网络带宽，提高带宽成本分担，并最大限度地提高可扩展性. 2.通过互联网或卫星/有线网络或这些网络技术的任何组合工作的交付技术的设计。3.开发新的指标和模型来确定哪些流行的流或部分流应该缓存在区域（或代理）服务器上，以最大限度地减少数据的传输成本.为流媒体传输协议开发新的网络检测工具，使人们能够深入了解网络事件和条件对协议性能的影响.使用新的在线网络仪器设备开发新的流媒体方法，最佳地适应当前的网络条件.开发一个新的测试平台，允许实验替代新的可靠的组播方法以及替代算法的缓存流媒体内容更接近客户端，使用thennew仪器设施，并在现场环境中无缝和透明地运行与普通客户端访问广泛使用的媒体服务器在大规模的网络，如Internet 2或Internet MBONE。