CAREER: Fundamental Performance Limits and Trade-offs in Wireless Embedded Sensor Networks

职业：无线嵌入式传感器网络的基本性能限制和权衡

• 批准号: 0347390
• 负责人: Thomas Hou
• 金额: $ 44.93万
• 依托单位: Virginia Polytechnic Institute and State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2004
• 资助国家: 美国
• 起止时间: 2004-08-01 至 2010-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0347390&HistoricalAwards=false
• 关键词: CAREER; Fundamental; Performance; Limits; Trade

Wireless sensor networks operate under a set of unique constraints and requirements, bringing in new challenges that go far beyond existing theories and algorithms. This project studies some fundamental performance limits and trade-offs that are inherent to wireless sensor networks, with the aim of laying a theoretical underpinning for future protocol design and algorithm implementation. Specifically, there are three thrust areas under the overarching theme of energy constraints and network lifetime on which we are concentrating our efforts: (1) maximizing network lifetime through optimal power-controlled flow routing; (2) understanding performance limits and the trade-offs between relay node placement and energy provisioning; and (3) uncovering the inherent properties associated with the energy-constrained rate allocation problem. Our approach is multi-disciplinary: it spans the fields of wireless communications, networking algorithms, and optimizations. The outcome of this research will fill important gaps in the current understanding of wireless sensor networks, enabling this growing field to fully realize its potential. The research in the first area will help us to develop basic research methodologies for the study of lifetime-centric flow routing in sensor networks. The research in the second area will enhance understanding of performance limits and trade-offs with significant implications for both theory and practice. The research in the third area will reveal inherent properties in energy-constrained sensor networks and formalize some basic theories for rate allocation and capacity. This project will enrich our knowledge of wireless sensor networks as well as provide a basis for novel graduate and undergraduate educational and mentoring activities.

无线传感器网络在一系列独特的约束和要求下运行，带来了远远超出现有理论和算法的新挑战。 本计画主要研究无线感测器网路所固有的一些基本效能限制与取舍，其目的是为未来的协定设计与演算法实作奠定理论基础。 具体来说，有三个推力领域的能源约束和网络寿命的总体主题下，我们正在集中我们的努力：（1）通过最佳的功率控制流路由最大限度地提高网络寿命;（2）了解性能限制和中继节点的位置和能源供应之间的权衡;（3）揭示与能量约束的速率分配问题的固有属性。 我们的方法是多学科的：它跨越了无线通信，网络算法和优化领域。这项研究的成果将填补目前对无线传感器网络的理解的重要空白，使这个不断发展的领域能够充分发挥其潜力。 在第一个领域的研究将有助于我们发展的基本研究方法，在传感器网络中的生命周期为中心的流路由的研究。第二个领域的研究将提高对性能极限和权衡的理解，对理论和实践都有重要意义。第三个方面的研究将揭示能量受限传感器网络的内在特性，并形式化速率分配和容量的一些基本理论。这个项目将丰富我们的无线传感器网络的知识，以及提供一个新的研究生和本科生的教育和指导活动的基础。