CAREER: Enabling Futuristic Distributed Applications With Integrative Multistream Networking

实现信息基础设施的全部潜力需要构建分布式应用程序，在这些应用程序中，这些无数设备的功能被集中在一起。 当今的互联网应用连接设备（即，连接我的浏览器与CNN服务器）。 未来的互联网应用将连接环境（即，CNN新闻编辑室的提议者办公室）。 高性能的未来分布式应用将采用大量的媒体流与其他类型的信息（例如，3D几何图形、控制信息、结构化XML文档等）。 这些应用程序所带来的网络挑战与传统的客户端/服务器应用程序有着根本的不同。 它们的特点是：多个语义相关的信息流，分布式应用程序体系结构，复杂的自适应行为。可扩展性和可组合性。大带宽延迟产品。未来的分布式应用程序很难构建，因为当前的网络基础设施不支持其特有的多流架构。这样做很重要，因为这些类型的应用程序（例如，远程教育、远程医疗等）当环境中的所有设备都有助于丰富和身临其境的体验时，所提出的研究解决了未来分布式多流应用程序所带来的网络挑战。研究将集中在管理应用程序中多个语义相关的数据流时出现的问题。利用流之间的高级语义关系对于实现应用级目标和适当地分配有限的网络资源是重要的。我们解决这个问题的方法包括：构建由聚合应用程序行为和相关对等流的状态通知的协议。专门针对分布式架构，其中应用程序在多个设备上实现。支持分布式应用程序驱动的适应，利用流之间的高级语义关系。开发数据类型（即视频、音频、几何等）更符合底层协议动态的表示。证明多流的有效性（即，在可能采用不同协议的多个流中传输复杂媒体类型）。

Realizing the full potential of the information infrastructure requires building distributed applications in which the capabilities of these myriad devices are harnessed together. The Internet applications of today connect devices (i.e., connecting my browser with the CNN server). The Internet applications of the future will connect environments (i.e., proposer's office with the CNN newsroom). High-performance futuristic distributed applications will employ scores of media streams in conjunction with other types of information (e.g., 3D geometry, control information, structured XML documents, etc.). The networking challenges presented by these applications are fundamentally different than traditional client/server applications. They are characterized by: Multiple, semantically related flows of information.Distributed application architectures.Complex adaptive behaviors. Extensibility and composability. Large bandwidth-delay products. Futuristic distributed applications are difficult to build because current networking infrastructures do not support their characteristic multistream architecture. Doing so is important because these types of applications (e.g., distance learning, tele-medicine, etc.) are most effective when all of the devices in an environment contribute to a rich and immersive experience. The proposed research addresses the networking challenges presented by futuristic distributed multiflow applications. The research will focus on the problems that arise when managing multiple semantically related flows of data within an application. Exploiting high-level semantic relationships between flows is important for achieving application-level goals and appropriately allocating limited network resources. Components of our approach to this problem include:Building protocols informed by both aggregate application behavior and the state of related peer flows.Experimenting with network mechanisms integrated across levels of the networking stack. Specifically targeting distributed architectures in which applications are implemented across multiple devices. Enabling distributed application-driven adaptation which exploits high-level semantic relationships between flows. Developing data type (i.e. video, audio, geometry, etc.) representations that are more congruent with underlying protocol dynamics. Demonstrating the effectiveness of multistreaming (i.e., transmitting complex media types in multiple flows possibly employing different protocols).