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

NeTS-NR：频谱隐形传态：光纤辅助无线架构

• 批准号: 0434974
• 负责人: Muriel Medard
• 金额: $ 25万
• 依托单位: Massachusetts Institute of Technology
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2004
• 资助国家: 美国
• 起止时间: 2004-09-15 至 2006-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0434974&HistoricalAwards=false
• 关键词: NeTS; NR; Spectrum; Teleportation; Fiber

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.

网络部署的当前趋势表明，光纤基础设施和可用无线频谱存在高度不对称性。特别地，室内商业和教育环境以及密集的城市区域通常被赋予严重未被利用的光纤，但是它们的无线资源受到有限的能量、干扰和严重的无线传播问题的挑战。目前的无线路由器的ad-hoc部署，通常被称为“热点”，是一种利用这种不对称性的手段，将无线流量以非常本地化的方式放置在有线基础设施上。该项目旨在通过现有的未充分利用的光纤基础设施在无线域中提供积极的信号采集，从而从根本上扩展热点的概念。技术原理是通过利用光纤丰富区域中的无线设备在物理上接近光纤的事实来减少无线传输的范围。目前，这种与光纤的接近性没有得到利用，因为只有很少的接入点，如基站或无线路由器，用于将无线信号转换到光纤上。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，使我们能够首次有效地使用非常高频率的无线频谱，例如60 GHz，其中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密集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，来显著缓解无线资源争用和能源使用的问题。这项研究将有助于建立新的手段，为无线能量收集提供廉价而简单的光纤接入。