ITR Collaborative Research: Energy-efficiency and Reliability in Dense Sensor Networks: A Distributed Signal Processing Perspective

加州伯克利大学的Kannan RamchandranU这项提案解决了使低功耗、无处不在的传感器网络成为现实所需的理论和算法信号处理机制中的一些重要组成部分。这些低功耗、低成本传感器的物理和硬件属性以及计算和通信能力，特别是那些基于高密度MEMS器件的传感器，有可能彻底改变下一代信息技术。事实上，下一代MEMS传感器预计将非常便宜且非常小（一毫米立方体的数量级），通信范围为几百米，带宽为每秒几十到几百兆比特。如何利用这些低成本、无处不在的设备构建一个普适的、可靠的、大规模分布式的、动态自适应的密集传感器网络系统是一个挑战。虽然硬件和计算基础设施遵循摩尔定律，但在理论和算法知识库方面，充分利用这一基础设施的潜力所需的系统级专业知识却严重滞后。这些网络所带来的挑战远远超出了现有的理论和算法，在许多情况下，需要从集中式架构到分布式架构的根本范式转变。因此，该建议的动机是开发使这个梦想成为现实所需的信号处理和通信系统机械的一些重要组件。

Kannan RamchandranU of Cal BerkeleyThis proposal addresses some important components in the theoretical and algorithmic signal processing machinery needed to make low-power, ubiquitous sensor networks a reality. The physical and hardware attributes as well as the computing and communication capabilities of these low-power, low-cost sensors, particularly those based on high-density MEMS devices, have the potential to revolutionize next-generation information technology. Indeed, next-generation MEMs sensors are expected to be very cheap and very small (of the order of one millimeter cube) with a communication range of several hundred meters and a bandwidth of tens to hundreds of kilobits per second. The challenge is to build a pervasive, reliable, mas-sively distributed, dynamically self-conguring dense sensor network system out of these low-cost, ubiquitous devices. While the hardware and computational infrastructure are following Moore's law, the system-level expertise in terms of both theoretical and algorithmic knowledge-base needed to fully harness the potential of this infrastructure is sadly lagging behind. The challenges presented by these networks are far beyond existing theories and algorithms, and in many cases require a fundamental paradigm shift from centralized to distributed architectures. This proposal is accordingly motivated at developing some important components of the signal processing and communication system machinery needed to make this dream a reality.