论文标题
在Terahertz运行能源收集软件定义的超材料中进行本地化：上下文分析
Toward Localization in Terahertz-Operating Energy Harvesting Software-Defined Metamaterials: Context Analysis
论文作者
论文摘要
软件定义的超材料（SDMS）代表了用于实时控制超材料的新型范式。设想SDM可以在智能纺织品等领域中启用各种令人兴奋的应用程序，并在具有挑战性的条件下感知。这些应用中的许多应用设想了SDM结构的变形（例如，滚动，弯曲，拉伸）。这会影响超材料元素的相对位置，并需要它们相对于彼此的定位。但是，如何执行这种本地化的问题尚未在社区中引发。我们认为，超材料元素通过Terahertz（THZ）运行的纳米网络无线控制。此外，我们认为这些要素是限制的，其唯一的动力选择是收获环境能量。对于这样的设置，我们证明了基于双向飞行时间（TOF）的本地化以及服务的高可用性（即始终超过80％的时间）的亚毫米准确性，这是由于本地化消耗的低能量的结果。最后，我们为许多相关系统参数（例如操作频率，带宽和收获率）提供本地化上下文。
Software-defined metamaterials (SDMs) represent a novel paradigm for real-time control of metamaterials. SDMs are envisioned to enable a variety of exciting applications in the domains such as smart textiles and sensing in challenging conditions. Many of these applications envisage deformations of the SDM structure (e.g., rolling, bending, stretching). This affects the relative position of the metamaterial elements and requires their localization relative to each other. The question of how to perform such localization is, however, yet to spark in the community. We consider that the metamaterial elements are controlled wirelessly through a Terahertz (THz)-operating nanonetwork. Moreover, we consider the elements to be energy constrained, with their sole powering option being to harvest environmental energy. For such a setup, we demonstrate sub-millimeter accuracy of the two-way Time of Flight (ToF)-based localization, as well as high availability of the service (i.e., consistently more than 80% of the time), which is a result of the low energy consumed in localization. Finally, we provide the localization context for a number of relevant system parameters such as operational frequency, bandwidth, and harvesting rate.
