ITR: Virtual Power for a Wireless Campus - A Vision of Ubiquitous Computing On Low-Cost Mobile Devices

ITR：无线园区的虚拟电源 - 低成本移动设备上普适计算的愿景

• 批准号: 0205712
• 负责人: Michael Franz
• 金额: $ 200.08万
• 依托单位: University of California-Irvine
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2002
• 资助国家: 美国
• 起止时间: 2002-09-01 至 2006-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0205712&HistoricalAwards=false
• 关键词: ITR; Virtual; Power; Wireless; Campus

While handheld, battery-powered devices such as personal digitalassistants (PDA's) and web-enabled mobile phones are emerging as newaccess points to the world's digital infrastructure, their cost andshort battery life are factors that are holding back their enormouspotential. Worse yet, the cost of such devices might even widen the"digital divide". This research addresses these cost and battery-life issuessimultaneously, thereby getting one step closer to a vision of ubiquitouscomputing embracing all of society. The specific focus is the digital universitycampus with wireless Internet coverage.In this setting, the aim is to increase the utility and battery-lifeand decrease the cost of handheld wireless computers by enabling theuse of relatively simple hardware for the mobile devices. This research aimsboth at designing embedded hardware that better conserves resources, as well ascreating a software layer that masks the limited computational prowessof a handheld device by seamlessly coupling it to a relatively high-poweredstationary computational infrastructure via an "always on" wireless connection.By off-loading power-intensive operations to the stationary infrastructure,the battery-powered mobile device is provided with "virtual power".Adaptive just-in-time compiler technology will be developed for minimizingpower use on mobile devices running mobilecode, and adaptive scheduling methods using results from theComputational Grid research community. Depending on the algorithm tobe run on the mobile device and its current distance from the nearestbase station, the computation to be performed is to be automaticallypartitioned between a part to be executed in the stationaryinfrastructure and another to be run on the mobile device.At the hardware level, orchestrated resource-management strategies will bedeveloped to enable designers to correctly design and implement highlyresource-constrained embedded systems while helping them to meet system-levelconstraints. This requires augmenting today's functional design flows with aresource-centric view. Here, the goal is not to replace existing design methodologieswith yet another all-encompassing methodology, but rather making a cross-cuttingimpact by demonstrating the applicability of results to several driving examplesat different levels of abstraction, including System-on-Chip (SoC) platforms,memory architecture level, and operating system level.

虽然手持式电池供电的设备（例如个人数字助理（PDA）和支持网络的手机）正在出现，因为NewAccess指出了世界数字基础设施，但其成本和电池寿命是阻碍其巨大利益率的因素。 更糟糕的是，此类设备的成本甚至可能会扩大“数字鸿沟”。 这项研究旨在解决这些成本和电池寿命，从而更接近泛滥的愿景，即拥抱整个社会。 具体的重点是具有无线Internet覆盖的数字大学坎普斯。在这种情况下，目的是通过启用移动设备的相对简单硬件来增加实用程序和电池选手降低手持无线计算机的成本。这项研究旨在设计嵌入的硬件，以更好地保守资源，并刺激软件层，该软件层通过将其无缝耦合到相对较高的计算计算基础设施中，掩盖了手持设备的有限计算实现设备的计算层面，请通过“始终在“无线电器”连接上使用“无线电器”的设备供您使用的设备，从而实现了无线电的设备。 “虚拟功率”。将开发适应性的即时编译器技术，以最大程度地减少运行MobileCode的移动设备的使用，并使用负责的网格研究社区的结果进行自适应调度方法。 根据算法在移动设备上运行及其距离最近的基础站的距离，要执行的计算将自动在固定基础结构中执行的零件之间进行自动分配，而另一个要在移动设备上运行的零件。系统级别。这需要以中心的视图来扩大当今的功能设计流。在这里，目标不是要替代另一种无所不包的方法，而是通过证明结果在不同级别的抽象级别的示例中的适用性，包括系统芯片（SOC）平台，内存体系结构水平和操作系统水平来替换现有的设计方法。