CAREER: Resource Management in Distributed Multimedia Systems

职业：分布式多媒体系统中的资源管理

• 批准号: 9624106
• 负责人: Jorg Liebeherr
• 金额: $ 20万
• 依托单位: University of Virginia Main Campus
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1996
• 资助国家: 美国
• 起止时间: 1996-09-15 至 2000-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9624106&HistoricalAwards=false
• 关键词: CAREER; Resource; Management; Distributed; Multimedia

The objective of this proposal is to advance the state-of-the-art of distributed multimedia systems in both research and education. A novel approach for managing heterogeneous resources in a shared distributed multimedia network is presented, called multiclass relative Quality-of Service. The research agenda concentrates on the exploration od this approach, the design and evaluation of traffic control algorithms, and their implementation and empirical evaluation in a testbed network. The education agenda is focused on the use of multimedia technology to innovate education. The research and education agenda will: 1) develop new approaches for resource management in distributed multimedia systems that can operate in a shared network environment. A new service model, called multi-class relative Quality-of-Service, is proposed. Different from existing service models for multimedia networks, the proposed service model can satisfy service requirements of most delay-sensitive multimedia applications, yet can be realized in the current infrastructure of shared network resources. 2) design and analyze novel traffic control algorithms for resource management in multimedia networks with multi-class relative Quality of-Service. The proposed research includes development and evaluation of flow control methods for relative Quality-of-Service, approaches to cope with dynamically changing resource management policies, and new routing algorithms. 3) design, implement, and experimentally evaluate new protocol mechanisms for resource management in distributed multimedia systems. By implementing the mechanisms as extensions to currently used network protocols, existing networks can gradually evolve to an environment with Quality-of-Service guarantees. 4) gain insight in and evaluate the use of interactive multimedia for education. An interactive tele-tutoring tool, already partially realized by the PI, that enables teachers and students to interact over a campus network, will provide an experimental platform to study the use of interactive multimedia tools for teaching. 5) contribute to the establishment of `multimedia' as a main area of an education in computer science. This includes the development of a project-oriented senior level course in multimedia systems that uses multimedia classrooms available at the institution.

该提案的目标是推动分布式多媒体系统在研究和教育领域的发展。提出了一种在共享分布式多媒体网络中管理异构资源的新方法，称为多类相对服务质量。 研究议程集中于该方法的探索、交通控制算法的设计和评估，以及它们在测试床网络中的实现和实证评估。 教育议程的重点是利用多媒体技术来创新教育。 研究和教育议程将：1）开发可在共享网络环境中运行的分布式多媒体系统中的资源管理新方法。提出了一种新的服务模型，称为多类相对服务质量。与现有的多媒体网络服务模型不同，所提出的服务模型可以满足大多数延迟敏感的多媒体应用的服务需求，并且可以在当前共享网络资源的基础设施中实现。 2) 设计和分析用于具有多级相对服务质量的多媒体网络中的资源管理的新型流量控制算法。拟议的研究包括开发和评估相对服务质量的流量控制方法、应对动态变化的资源管理策略的方法以及新的路由算法。 3) 设计、实现和实验评估分布式多媒体系统中资源管理的新协议机制。通过将这些机制实现为当前使用的网络协议的扩展，现有网络可以逐渐演进到具有服务质量保证的环境。 4) 深入了解并评估交互式多媒体在教育中的使用。 PI已经部分实现了一种交互式远程辅导工具，使教师和学生能够通过校园网络进行交互，这将为研究交互式多媒体工具在教学中的使用提供一个实验平台。 5) 致力于将“多媒体”建立为计算机科学教育的主要领域。这包括开发一个面向项目的多媒体系统高级课程，该课程使用该机构提供的多媒体教室。