CAREER: Towards an Efficient Ubiquitous Computing Infrastructure

职业：迈向高效、普适的计算基础设施

• 批准号: 0092678
• 负责人: Srinivasan Seshan
• 金额: $ 48.77万
• 依托单位: Carnegie-Mellon University
• 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: 2001-06-01 至 2007-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0092678&HistoricalAwards=false
• 关键词: CAREER; Towards; Efficient; Ubiquitous; Computing

In 1989, the researcher applied for graduate schooland wrote that global network access would change the way people work and that people would use the network to "plan travel, pay bills and access libraries of information". A decade later, the Internet and Web applications made these network applications a reality. As we look to the future, the next major evolution in technology will be to make it possible for users to access information and interact with all devices in their environment through ubiquitous wireless networks and simple inexpensive computing devices such as PDAs [81]. The popular approach to achieving this future vision has been to move the applications and network services available on the Internet onto the simple mobile devices and the wireless network infrastructure. However, innovative network services and protocols will be necessary to operate such networks and applications efficiently. The objective of this NSF CAREER proposal is to examine the services that this new generation of mobile applications need from the network and to carefully adapt the design and implementation of these services to the environment's demands. The unique requirements of this environment include: Power Awareness. Most mobile devices will be battery operated and thus require energy efficiency. Wireless Link Characteristics. Wireless links are slower due to limited spectrum availability, are prone to loss and disconnection, and are often connection-oriented or stateful. Network Evolution. Since users will not upgrade all their small devices simultaneously, the future system must support automatic upgrading, multiple simultaneous versions and/or backward compatibility. Dynamic Network. The members of a network are dynamic due to mobility and range of network. Isolation. A group of wireless devices should be able to operate in isolation from any infrastructure. Simple Devices. Many of the devices that participate in such a network may be extremely simple. Scale of Operation. The future network will have billions of small devices. New Applications. Applications in this environment may need very different services from the network. The objective of this CAREER proposal is to design a new networking and operating system infrastructure for this next generation of ubiquitous computing applications. The research plan consists of three major stages. In the first stage, the researcher plans to build some of these next generation applications to improve the understanding of their requirements. The next stage consists of developing protocols and operating system services based on these new requirements. The project is especially interested in 1) improving the bandwidth and power efficiency of network protocols, 2) making it possible for applications and protocols to adapt to the availability of power, availability of bandwidth and other environmental conditions, 3) designing service discovery approaches that can handle the query types that are likely for mobile applications, and 4) making this environment support the easy introduction of new link technologies, network protocols and applications. Finally, the research will be evaluated by modifying our test applications to use these new services. If successful, this project will significantly change how wireless networks and mobile applications of the future will be structured and built. The education plan proposes to use educational applications such as shared note taking [24] and intelligent classrooms [1] among the early target applications to be used. In addition, the researcher plans to incorporate mobile and wireless education into the already existing mainstream undergraduate and graduate networking classes.

1989年，研究人员申请了研究生院士学，并写道，全球网络访问将改变人们的工作方式，人们将使用网络“计划旅行，支付账单和访问信息库”。十年后，Internet和Web应用程序使这些网络应用程序成为现实。当我们展望未来时，技术的下一个主要发展将是使用户通过无处不在的无线网络和简单的廉价计算设备（例如PDAS [81]）访问信息并与环境中的所有设备进行交互成为可能。实现这一未来愿景的流行方法是将Internet上可用的应用程序和网络服务移至简单的移动设备和无线网络基础架构上。但是，对于有效地操作此类网络和应用程序，创新的网络服务和协议将是必要的。 NSF职业建议的目的是检查新一代移动应用程序需要从网络中需要的服务，并仔细调整这些服务的设计和实施，以满足环境的需求。这种环境的独特要求包括：电源意识。大多数移动设备都将运行电池，因此需要能源效率。 无线链接特征。无线链路由于频谱的可用性有限，容易损失和断开连接而较慢，并且通常面向连接或状态。 网络发展。由于用户不会同时升级所有小设备，因此未来系统必须支持自动升级，多个同时版本和/或向后兼容性。 动态网络。由于移动性和网络范围，网络的成员是动态的。 隔离。一组无线设备应该能够与任何基础架构隔离开展。 简单的设备。参加此类网络的许多设备可能非常简单。 操作规模。未来的网络将拥有数十亿个小型设备。 新应用程序。在这种环境中的应用程序可能需要与网络截然不同的服务。 该职业建议的目的是为下一代无处不在的计算应用程序设计一个新的网络和操作系统基础架构。研究计划包括三个主要阶段。在第一阶段，研究人员计划构建其中一些下一代应用程序，以提高对其要求的理解。下一个阶段包括根据这些新要求开发协议和操作系统服务。该项目特别对1）提高网络协议的带宽和功率效率，2）使应用程序和协议可以适应功率的可用性，带宽的可用性，带宽和其他环境条件，3）设计服务发现方法，这些方法可以处理可以处理可能用于移动应用程序的查询类型的方法，以及使环境可以轻松地介绍新的链接技术，并介绍新的链接技术，并介绍了新的技术。最后，将通过修改我们的测试应用程序来使用这些新服务来评估研究。如果成功，该项目将大大改变未来的无线网络和移动应用程序的结构和构建方式。 教育计划建议在要使用的早期目标应用程序中使用教育应用，例如共享注释[24]和智能教室[1]。此外，研究人员计划将移动和无线教育纳入已经存在的主流本科和研究生网络课程中。