CIF: Small: Collaborative Research: Communications with Energy Harvesting Nodes

CIF：小型：协作研究：与能量收集节点的通信

• 批准号: 1526215
• 负责人: Xiaodong Wang
• 金额: $ 27.05万
• 依托单位: Columbia University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2015
• 资助国家: 美国
• 起止时间: 2015-09-01 至 2019-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1526215&HistoricalAwards=false
• 关键词: CIF; Small; Collaborative; Research; Communications

Wireless networks composed of nodes that can harvest energy from the environment represent the green future of communications. Utilizing the harvested ambient energy improves the environmental impact of wireless devices in the global scale, while extending the network lifetime indefinitely and making the devices truly mobile. Energy harvesting (EH) brings new dimensions to system design in the form of randomness and intermittency of available energy, as well as additional system issues such as energy storage capacity and processing complexity. Additionally, the deployment of EH wireless networks calls for novel techniques for resource and interference management, cooperation among EH nodes, as well as cross-layer optimization of the network. The research focuses on a new set of challenges brought about by wireless networks composed of EH nodes. The research directions are divided into four major thrusts. (1) The first challenge is to understand the fundamental limit of EH communications in the information theoretic setting, accounting for random and intermittent supply of available energy, finite battery capacity with storage and withdrawal efficiencies. The special cases for low-power and high-power regimes are of particular interest. (2) In order to make efficient use of the available resources, joint energy scheduling and spectral and/or spatial resource allocation in EH networks exploiting the inherent structure of the resource allocation problems becomes an important problem. (3) Different EH nodes in the network can share their harvested energy either through the presence of power line between them, or through wireless charging. The research studies previous thrusts with energy and data cooperation. (4) The research investigates efficient distributed cross-layer solutions to maximize the total system utility subject to data and energy queuing stability constraints.

由可以从环境中获取能量的节点组成的无线网络代表了通信的绿色未来。利用收集到的环境能量可以改善全球范围内无线设备对环境的影响，同时无限期地延长网络寿命并使设备真正实现移动化。能量收集（EH）以可用能量的随机性和间歇性的形式为系统设计带来了新的维度，以及能量存储容量和处理复杂性等额外的系统问题。此外，EH 无线网络的部署需要资源和干扰管理、EH 节点之间的协作以及网络的跨层优化等新技术。该研究重点关注由 EH 节点组成的无线网络带来的一系列新挑战。研究方向分为四个主要方向。 (1) 第一个挑战是理解信息论背景下 EH 通信的基本限制，考虑可用能量的随机和间歇性供应、有限的电池容量以及存储和提取效率。低权力和高权力政权的特殊情况特别令人感兴趣。 (2)为了有效利用可用资源，利用资源分配问题的固有结构在EH网络中进行联合能量调度和频谱和/或空间资源分配成为一个重要问题。 (3)网络中的不同EH节点可以通过它们之间的电力线或通过无线充电来共享所收集的能量。该研究研究了之前的能源和数据合作主旨。 (4) 该研究研究了高效的分布式跨层解决方案，以在数据和能量排队稳定性约束下最大化总系统效用。