ITR: Supporting Adaptable Pervasive Computing Through a Kernel-Middleware eXchange

ITR：通过内核中间件交换支持适应性普适计算

• 批准号: 0313142
• 负责人: Philip McKinley
• 金额: $ 21万
• 依托单位: Michigan State University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2003
• 资助国家: 美国
• 起止时间: 2003-08-15 至 2007-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0313142&HistoricalAwards=false
• 关键词: ITR; Supporting; Adaptable; Pervasive; Computing

McKinleyThe rapid expansion of mobile computing infrastructure promises ubiquitous access to the Internet. However, the dynamics of this environment (variable conditions on wireless networks, changing security policies as users roam among wireless domains, and computing priorities that depend on battery life) pose a significant challenge in the design of software infrastructure for mobile systems. One approach to this problem is to introduce a layer of adaptive middleware between applications and underlying transport services. While a traditional role of middleware is to insulate application components from platform variations, an adaptive middleware layer should exploit services provided by the platform operating system to enhance functionality and performance. This project investigates the interaction between adaptive middleware and the operating system kernel. Specifically, the project focuses on the question: What services and interfaces should the operating system provide to enable adaptive middleware to better meet the needs of mobile computing applications? The key hypothesis to be tested is that this relationship is bidirectional: certain middleware functionality is more effective when pushed into the kernel, and certain kernel operations are more effective when combined with middleware-level information. The Kernel-Middleware eXchange (KMX) project builds on the idea that, instead of viewing lower-level middleware as an "operating system abstraction layer," it is also necessary to investigate how this part of the middleware might actively cooperate with the operating system in order to provide applications with supporting functionality that neither part could provide by itself. The project investigates three cross-cutting concerns: quality-of-service of multimedia communication on wireless networks; measures to enhance the security of mobile devices, including adaptive auditing and packet filtering; and managing battery lifetime through data transformations, adaptive process scheduling, and management of network interface card usage.

移动计算基础设施的快速扩张保证了无处不在的互联网接入。然而，这种环境的动态（无线网络上的可变条件、用户在无线域之间漫游时不断变化的安全策略以及依赖于电池寿命的计算优先级）对移动系统的软件基础设施设计构成了重大挑战。解决这个问题的一种方法是在应用程序和底层传输服务之间引入一层自适应中间件。虽然中间件的传统角色是将应用程序组件与平台变化隔离开来，但自适应中间件层应该利用平台操作系统提供的服务来增强功能和性能。这个项目研究自适应中间件和操作系统内核之间的交互。具体来说，该项目关注的问题是：操作系统应该提供哪些服务和接口，以使自适应中间件能够更好地满足移动计算应用程序的需求？要测试的关键假设是这种关系是双向的：某些中间件功能在被推入内核时更有效，而某些内核操作在与中间件级信息结合时更有效。内核-中间件交换（KMX）项目建立在这样一个思想之上：与其将底层中间件视为“操作系统抽象层”，还需要研究中间件的这一部分如何积极地与操作系统合作，以便为应用程序提供任何部分都无法单独提供的支持功能。该项目研究了三个交叉问题：无线网络上多媒体通信的服务质量；增强移动设备安全的措施，包括自适应审计和包过滤；并通过数据转换、自适应进程调度和网络接口卡使用管理来管理电池寿命。