EARS: Collaborative Research: Spectrum Sensing for Coexistence of Active and Passive Radio Services

EARS：协作研究：主动和被动无线电服务共存的频谱感知

• 批准号: 1547347
• 负责人: Seung-Jun Kim
• 金额: $ 20.05万
• 依托单位: University of Maryland Baltimore County
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2016
• 资助国家: 美国
• 起止时间: 2016-01-01 至 2020-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1547347&HistoricalAwards=false
• 关键词: EARS; Collaborative; Research; Spectrum; Sensing

This EARS (Enhancing Access to the Radio Spectrum) program was founded in response to the 2010 Presidential Memorandum on Unleashing the Wireless Broadband Revolution mandated by Congress as part of the National Broadband Plan. It was referenced in 2010 State of the Union and later on the Middle Class Tax Relief and Job Creation Act of 2012 (More than 1/3 of the bill deals with radio spectrum), the PCAST 2012 Report [President's Council of Advisors on Science and Technology] (which calls for vastly increased use of spectrum sharing) and the 2013 Presidential memo (Expanding America's Leadership in Wireless Innovation). The aim of this program is to identify bold new concepts with the potential to contribute to significant improvements in the efficiency of radio spectrum utilization, protection of passive sensing services, and in the ability for traditionally underserved Americans to benefit from current and future wireless-enabled goods and services. The impact is large on the economics of the Nation as seen on the last FCC bidding of 65MHz of the spectrum for over $45 billion early in 2015. It will enable access to science, engineering, industry, civilian and military users of the RF spectrum.Effective use of radio spectrum is coveted by both active services (e.g., cellular, radar, wireless internet) and passive services (e.g., radio astronomy service (RAS) and earth exploration satellite service (EESS)). It has led to an increasing tension between the growing demand for greater spectrum use by active radios and the pressing need for quiet spectrum by passive systems. The first and foremost step towards alleviating this tension is to monitor the radio frequency environment at high resolution in time, space, frequency, and even some appropriately defined feature space. Although the spectrum monitoring issue has undergone extensive research and radio frequency interference (RFI) detection has been fervently investigated in the remote sensing communities, only limited efforts exist in examining spectrum monitoring from the perspectives of both active and passive systems to conscientiously support coexistence. To support peaceful coexistence on radio spectrum, this project aims to develop efficient spectrum monitoring techniques that provide deep understanding and technological enablers for future spectrum management in the growing presence of active and passive radio services. Advanced signal processing techniques will be developed to provide high-resolution spectrum sensing at short sensing time, and optimal sensing resource allocation schemes will be investigated to maximize the payoffs of the sensing budget. The proposed research on spectrum sensing will inform and advance the RFI detection and management in support of increased societal and scientific returns from RAS and EESS investments. The developed techniques can also be leveraged by cognitive radio networks for dynamic spectrum sharing, impacting practices of the services like cellular data and Internet of things (IoT). Graduate and undergraduate students will benefit from the unique interdisciplinary nature of this research, especially through interactions with the scientists at the Arecibo Observatory, and the hands-on experience with its 305 m telescope.

该 EARS（增强无线电频谱接入）计划是为了响应 2010 年国会授权的《关于发动无线宽带革命的总统备忘录》而设立的，该备忘录是国家宽带计划的一部分。它在 2010 年国情咨文和后来的 2012 年中产阶级税收减免和创造就业法案（该法案超过 1/3 涉及无线电频谱）、PCAST​​ 2012 报告 [总统科学和顾问委员会技术]（要求大幅增加频谱共享的使用）和 2013 年总统备忘录（扩大美国在无线创新领域的领导地位）。该计划的目的是确定大胆的新概念，这些概念有可能显着提高无线电频谱利用效率、保护无源传感服务，并使传统上服务不足的美国人能够从当前和未来的无线技术中受益。商品和服务。从 2015 年初 FCC 以超过 450 亿美元的价格竞标 65MHz 频谱来看，这对国家经济产生了巨大影响。它将让科学、工程、工业、民用和军事用户能够使用 RF 频谱。有源服务（例如蜂窝、雷达、无线互联网）和无源服务（例如射电天文学服务 (RAS) 和地球探测卫星服务）都渴望有效利用无线电频谱（EESS））。这导致有源无线电对更多频谱使用的日益增长的需求与无源系统对安静频谱的迫切需求之间的紧张关系日益加剧。缓解这种紧张的第一步也是最重要的一步是在时间、空间、频率甚至一些适当定义的特征空间上以高分辨率监控射频环境。尽管频谱监测问题已经进行了广泛的研究，射频干扰（RFI）检测在遥感界也得到了热烈的研究，但从有源和无源系统的角度检查频谱监测以认真支持共存的努力却很有限。为了支持无线电频谱的和平共处，该项目旨在开发高效的频谱监测技术，为未来在有源和无源无线电服务日益增多的情况下进行频谱管理提供深入的理解和技术支持。将开发先进的信号处理技术，以在短时间内提供高分辨率频谱感测，并将研究最佳感测资源分配方案，以最大限度地提高感测预算的回报。拟议的频谱感知研究将为 RFI 检测和管理提供信息并推进 RFI 检测和管理，以支持增加 RAS 和 EESS 投资的社会和科学回报。认知无线电网络还可以利用所开发的技术进行动态频谱共享，从而影响蜂窝数据和物联网（IoT）等服务的实践。研究生和本科生将受益于这项研究独特的跨学科性质，特别是通过与阿雷西博天文台科学家的互动以及使用其 305 m 望远镜的实践经验。