CAREER: Systems Support for Data Management in Mobile Devices

个人计算目前正在经历一场重大的革命：移动的计算的发展。移动的设备的数量正处于快速增长的轨迹上，包括数百万个蓝牙和WiFi使能设备，诸如相机、PDA、蜂窝电话和音乐播放器。虽然每个设备都有特定的用途，但它们都用于创建，存储和共享大量的个人数据。沿着而来的是数据管理的噩梦：系统因缺乏数据可用性、将数据从一个设备传输到另一个设备的复杂性以及有限的电池寿命而使用户感到沮丧。这项CAREER研究正在设计和构建移动的系统，以解决电源管理、可变连接和可用性问题。采用了各种技术，从硬件和软件的独特组合，到建模测量的创新技术。该研究包括建立真实的系统，以证明这些方法的好处给最终用户。通过连接的低功率嵌入式子系统的层次结构，移动的设备有效地进入低功率模式以提供数据传输机会。其次，由于许多设备经常与对等设备断开连接，因此需要使用第三方设备来传输数据更新。使用分布式文件系统以及中断容忍网络的技术，该研究正在构建利用移动性在正常断开连接的设备之间传输数据的系统。第三，使用移动的设备高效地传输数据需要高效的操作支持来存储数据。这个职业生涯赠款资助这些研究活动，以及正在进行的合作与其他四所学院在西部马萨诸塞州地区。通过与两所排名靠前的女子学院的互动，PI鼓励更多的女学生攻读计算机科学研究生。

Personal computing is currently undergoing a major revolution: the growth of mobile computing. The number of mobile devices is on a rapidly increasing trajectory, including millions of Bluetooth and WiFi enabled devices such as cameras, PDA, cell-phones, and music players. Although each device has a specific purpose, they are all used to create, store, and share vasts amounts of personal data. Along with this growth comes a data management nightmare: systems frustrate users with the lack of availability of data, complications in transferring data from one device to another, and limited battery lifetime.This CAREER research is designing and building mobile systems that address power management, variable connectivity, and usability concerns. A variety of techniques are employed, from unique combinations of hardware and software, to innovative techniques in measurement in modeling. The research includes building real systems, in order to demonstrate the benefits of these approaches to end-users.The first issue to be addressed is power management in always-on devices. Through a hierarchy of connected low-power embedded subsystems, the mobile devices efficiently enter low-power modes to provide data transfer opportunities. Second, because many devices frequently disconnect from their peers, it is necessary to use third party devices to transfer data updates. Using techniques from Distributed File Systems, as well as Disruption Tolerant Networking, the research is building systems that take advantage of mobility to transfer data between normally disconnected devices. Third, efficiently transferring data using mobile devices requires efficient operating support for storing data.This CAREER grant funds these research activities, as well as ongoing collaborations with four other colleges in the Western Massachusetts area. Through interactions with two highly-ranked all-women's colleges, the PI is encouraging more female students to pursue graduate school in Computer Science.