SGER: Small Antennas for Angle of Arrival Determination and Accurate Localization

ECCS-0742054东北大学Stefano Basagni这项研究专注于探索解决方案，使能量受限的小型无线传感器节点能够自我定位，即计算它们相对于绝对或相对定位系统的坐标。典型的需要精确定位的无线传感器网络(WSN)应用包括灾难恢复和独立辅助生活应用。节点位置感知显然是必要的，因为感知到的事件应该与其发生的地点一起报告。由于对于许多无线传感器网络应用的场景，GPS不是一个可行的选择，已经提出了提供节点位置的定位协议。特别是，已经观察到，节点间距离和无线电信号的到达角(AOA)的同时部署可以有效地用于以显著的精度定位节点。虽然已经提出了测量节点间距离的技术来实现准确的估计，但在无线传感器网络中，确定AOA仍然是一个广泛未知的领域。这项研究将研究一种物理和电气上都很小的、低功耗的多元素天线阵列的设计，它可以为射频信号提供明确的波达方向。智能优势：无线传感器网络是一个重要且不断增长的领域，有着无数的应用，其中大部分依赖于准确的定位。在无线传感器网络中，使用射频技术确定准确的AOA在很大程度上仍未被探索。这项研究旨在从多个角度提供结果：从天线设计到广泛的模拟再到真实的硬件实验。广泛的影响：为传感器节点提供不依赖基础设施的自我定位能力将提高灾难恢复和辅助生活应用中的响应。无线传感器网络社区也将从这里提出的调查中受益。一名研究生将得到这一努力的支持。

ECCS-0742054Stefano Basagni, Northeastern UniversityThis research focuses on exploring solutions that will allow small, energy-constrained wireless sensor nodes to self-localize, i.e., to compute their coordinates with respect to an absolute or relative positioning system. Typical wireless sensor networks (WSNs) applications that require accurate localization include disaster recovery and independent assisted living applications. Nodal location awareness is clearly necessary because a sensed event should be reported along with where it happened.Since for the scenario of many WSNs application GPS is not a viable choice, localization protocols have been proposed that provide nodal positions. In particular, it has been observed that the concurrent deployment of inter-nodal range and the angle of arrival (AoA) of the radio signal can be effectively used for localizing nodes with remarkable accuracy. While techniques for measuring the inter-nodal range have been proposed that achieve accurate estimation, determining the AoA is still widely uncharted territory in WSNs. This research will investigate the design of a physically and electrically small, low-power multiple element antenna array that can provide unambiguous AoA for RF signals.Intellectual Merit: WSN are an important and growing area, with countless applications most of which relay on accurate localization. Determining accurate AoA with RF techniques is still largely unexplored for WSNs. This research intends to provide results from multiple points of view: From antenna design, to extensive simulations to real-hardware experimentation.Broader Impact: Providing sensor nodes with the ability to self-localize without relying on infrastructure will improve the response in disaster recovery and in assisted living applications. The WSN community will also benefit by the investigation proposed here. A graduate student will be supported by this effort.