Collaborative Research: EARS: Fundamental Limits of Spectrum Sensing

合作研究：EARS：频谱传感的基本限制

• 批准号: 1343326
• 负责人: Ali Tajer
• 金额: $ 21.22万
• 依托单位: Wayne State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2013
• 资助国家: 美国
• 起止时间: 2013-10-01 至 2014-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1343326&HistoricalAwards=false
• 关键词: Collaborative; Research; EARS; Fundamental; Limits

Objective:Ubiquity of wireless connectivity and its constant growth in application and scale necessitate extremely efficient usage of spectrum as the main commodity in wireless industry. Highly regulated spectrum access policies and growing demands for spectrum access have promoted the notion of accommodating the needs of unlicensed services when the license-holding ones under-utilize the spectrum. The goal of this proposed project is to characterize the fundamental limits of spectrum sensing while recognizing the system-level and physical-level limitations imposed by costs of information acquisition, data traffic demands, and model uncertainties with sound guarantees on agility, responsiveness, and adaptability to the geo-temporal spectral occupancy variations. Intellectual merit:The proposed research lies at the crossroad of wireless communication, sequential statistics, and stochastic optimization. It aims to find the fundamental limits of spectrum sensing and delineates the interplay among the performance guarantees on the decisions about spectral activities, cost of sensing, communication delay tolerance, and the uncertainty level about model dynamics. This leads to novel spectrum sensing procedures in which an optimal balance among can be struck among different aspects based on the operational needs. Broader impact:The research has multiple technological and societal impacts. It furnishes a baseline for assessing the competency of different available spectrum sensing procedures within the same framework, and also provides novel sensing procedures that yield performance levels that match the theoretical fundamental limits. The theoretical models and concepts that are developed in this project have the potential to impact adjacent research domains, especially those involving experimental design and hypothesis testing for high-dimensional data.

目标：无线连接的普遍存在及其应用和规模的不断增长需要非常有效地使用频谱作为无线行业的主要商品。高度管制的频谱接入政策和对频谱接入的日益增长的需求促进了在持有许可证的服务未充分利用频谱时适应未许可服务的需求的概念。该项目的目标是表征频谱感知的基本限制，同时认识到信息获取成本、数据流量需求和模型不确定性所带来的系统级和物理级限制，并对敏捷性、响应性和适应性提供良好的保证。智力价值：拟议的研究在于无线通信，顺序统计和随机优化的十字路口。它的目的是找到频谱感知的基本限制，并划定的频谱活动，感知成本，通信延迟容忍度，模型动态的不确定性水平的决定的性能保证之间的相互作用。这导致了新的频谱感测过程，其中可以基于操作需求在不同方面之间达成最佳平衡。更广泛的影响：该研究具有多种技术和社会影响。它为评估同一框架内不同可用频谱感测程序的能力提供了一个基线，并提供了新的感测程序，这些程序产生的性能水平与理论基本限制相匹配。该项目中开发的理论模型和概念有可能影响相邻的研究领域，特别是涉及高维数据的实验设计和假设检验的领域。