NeTS-NR: Spectrum Teleportation: A Fiber-Aided Wireless Architecture

当前网络部署的趋势表明，光纤基础设施和可用的无线频谱存在高度的不对称性。特别是，室内商业和教育环境以及人口稠密的城市地区通常拥有大量未充分利用的光纤，但它们的无线资源受到能量有限、干扰和严重的无线传播问题的挑战。当前无线路由器的自组织部署(通常称为“热点”)是一种通过以非常局部化的方式将无线流量放置到有线基础设施上来利用这种不对称性的方法。该项目寻求从根本上扩展热点的概念，通过现有的未得到充分利用的光纤基础设施在无线领域提供积极的信号采集。技术基础是利用光纤丰富地区的无线设备在物理上接近光纤这一事实来缩小无线传输范围。目前，由于很少有接入点(例如基站或无线路由器)用于将无线信号转换到光纤上，因此这种对光纤的接近并未被利用。该项目将考虑使用大量小型、廉价的光纤接入点。特别是，我们的项目将研究在建筑物中使用光纤基础设施，使我们第一次能够在非常高的频率(例如60 GHz)有效地使用无线频谱，在这种频率下，传播效应只允许非常短的范围。这一努力的主要成果将是通过减少人口稠密环境中无线传输所需的范围，并允许光纤工厂无处不在地捕获无线信号，从而显著缓解无线资源争用和能源使用问题。这项研究将有助于建立新的方法，为无线能量收集提供廉价和简单的光纤接入。

Current trends in network deployment show that there is high asymmetry in fiber infrastructure and in available wireless spectrum. In particular, indoor business and educational environments, as well as dense urban areas, are generally richly endowed with heavily underutilized fiber, but their wireless resources are challenged by limited energy, by interference and by severe wireless propagation issues. The current ad-hoc deployment of wireless routers, commonly termed "hot spots", is a means of exploiting this asymmetry by placing wireless traffic onto the wireline infrastructure in a very localized fashion. This project seeks to extend radically the concept of hotspots by providing aggressive harvesting of the signals in the wireless domain through the existing, underutilized, fiber infrastructure. The technical rationale is to reduce the range of wireless transmissions by making use of the fact that wireless devices in fiber-rich areas are physically close to fiber. Currently, this proximity to fiber is not exploited, since there are very few access points, such as base stations or wireless routers, for translating wireless signals onto the fiber. The project will consider the use of a large number of small, inexpensive points of access to the fiber. In particular, our project will investigate using fiber infrastructure in buildings to allow us, for the first time, to use effectively wireless spectrum at very high frequencies, such as 60 GHz, where propagation effects allow only very short ranges. The main outcomes of this effort will be to alleviate significantly issues of wireless resource contention and energy use, by reducing the range needed for wireless transmission in densely populated environments, and allowing wireless signals to be captured ubiquitously by the fiber plant. This research will help establishing new means providing cheap and simple access onto fiber for wireless energy harvesting.