NeTS - WN - Spectrum Observatory System

该研究项目在芝加哥建立了一个永久性的频谱观测站，以监测和支持为期三年的频谱使用情况的分析。该观测站还有一个移动频谱占用平台，用于对各个目标城市进行常规检查，以探索“未使用的频谱”，并在芝加哥验证固定观测站读数作为城市代表性测量数据的有效性。选择郊区和农村进行测量，以扩大对这些环境中频谱使用差异的了解。研究的重点是：1)获取使用率数据，2)分析数据中的异常和趋势，3)检查观察到的使用模式所建议的提高频谱利用率的机会。这笔赠款支持学术界、产业界和政府实体之间的合作研究。研究的影响包括：1)收发信机设计者，2)认知无线电研究人员，3)频谱拥有者和利益相关者，4)工程专业学生和教师，以及5)调节者。这些信息最大的影响可能是对美国政府的沟通政策。目前，有关频谱占用的信息充其量也是参差不齐的，导致最坏情况分析、保守的政策和对稀缺频谱资源的糟糕利用。新兴的电信技术需要极大地提高对频谱利用和趋势的了解才能有效。该频谱观测站是频谱预测的基础，而频谱预测对于认知无线电系统、新型无线设备和网络的成功大规模部署至关重要。最后，本研究为无线通信网络的研究生和本科生提供了一个非常有用的学术平台。

This research project establishes a permanent Spectrum Observatory in Chicago to monitor and support the analysis of spectrum usage for a three-year period. This observatory is supplemented by a mobile spectrum occupancy platform to nomadically examine various target cities to both explore "unused spectrum" and in Chicago to validate the fixed observatory readings as representative measurements for the city. Selected suburban and rural measurements are performed to expand the understanding of the differences in spectrum usage in these environments. The research focuses on: 1) obtaining the occupancy data, 2) analyzing the anomalies and trends in the data, and 3) examining the opportunities for improved spectral utilization suggested by the observed usage patterns. This grant supports collaborative research across and between academia, industry, and government entities. The research impacts: 1) transceiver designers, 2) cognitive radio researchers, 3) spectrum owners and stakeholders, 4) engineering students and faculty, and 5) regulators. The greatest impact of this information may be to U.S. government communications policy. Currently, information on spectrum occupancy is spotty at best, leading to worst-case analysis, conservative policies, and poor utilization of the scare spectrum resource. Emerging telecommunication technologies require a vastly improved understanding of spectrum utilization and trends to be effective. This Spectrum Observatory serves as the basis for spectrum forecasting that is crucial for the successful broad scale deployment of cognitive radio systems, new wireless devices, and networks. Finally, this study provides a very useful academic platform for graduate and undergraduate courses in wireless communication networks.