EARS: Joint Optimization of RF Design and Smartphone Sensing: From Adaptive Sniffing to WAZE-Inspired Spectrum Sharing

EARS：射频设计和智能手机传感的联合优化：从自适应嗅探到受 WAZE 启发的频谱共享

基本信息

批准号：
1547294
负责人：
Junshan Zhang
金额：
$ 65万
依托单位：
Arizona State University
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
2015
资助国家：
美国
起止时间：
2015-09-15 至 2019-08-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=1547294&HistoricalAwards=false
关键词：
EARS Joint Optimization RF Design

项目摘要

The past decade has witnessed a skyrocketing demand for commercial wireless spectrum. These sharp increases in mobile traffic (particularly smartphone traffic) are projected to continue in the foreseeable future, creating an urgent need to develop innovative spectrum sensing and sharing technologies. The proposed research is inspired by Waze, a highly successful GPS-based mobile navigation application program that provides real-time traffic information, based on user-submitted travel times and route details. Inspired by Waze, this project is centered around the vision that future generation smartphones will be able to carry out real-time spectrum sensing and sharing of the communication environment, through built-in spectrum sniffers and the help of shared usage information from mobile devices. This research shall enable a paradigm shift from existing cognitive radio design approaches to usage aware spectrum sharing. Innovative implementation of a low-cost integrated broadband RF design for smartphone spectral sniffing, in combination with novel spectrum sharing techniques, will have a compelling and transformative impact in smartphone design and enable efficient spectrum sharing. The educational activities will develop skilled workforce in this area of national need by inspiring and engaging the middle and high school student population in engineering. Built on this vision, this project advocates joint design of radio frequency (RF) hardware and spectrum sensing for smartphones, aiming to enable usage-aware spectrum sharing with minimal dynamic range and power consumption requirements placed on the smartphone hardware. Under this common theme, this project consists of the following research and educational thrusts. I) Low-cost RF architecture for smartphone sensing. Thrust I focuses on low-cost, integrated, broadband RF design for spectrum sensing and data transmission. The spectral sniffer leverages shared usage information to detect RF signals from 1 GHz to 18 GHz with both high dynamic range and sensitivity, and the digital transmitter enables modulation-agnostic data transmission with low handset power consumption. Built on the low-overhead design of RF hardware in this thrust, database assisted spectrum access and distributed spectrum access are explored in Thrusts II and III, respectively. II) Waze-inspired database assisted spectrum sharing. Along the same line as in the Waze application, a database is used to gather spectrum usage information from smartphones, and sends both real-time location-specific usage information and the set of potentially vacant channels in response to the requests from individual users. Each user then carries out refined sensing, followed by data transmissions. III) Waze-inspired usage-aware distributed spectrum sharing. Thrust III is dedicated to study distributed spectrum sharing, where usage information is shared only among smartphone users in the vicinity. IV) Integrate research into education and outreach by performing a diverse set of activities that include curricular tasks and K-12 outreach.

过去十年来，对商业无线频谱的需求飞涨。这些移动流量的急剧增加（尤其是智能手机流量）预计将在可预见的将来持续，从而迫切需要开发创新的频谱感知和共享技术。拟议的研究的灵感来自Waze，这是一项非常成功的基于GPS的移动导航应用程序，该程序基于用户的旅行时间和路线详细信息提供实时流量信息。受Waze的启发，该项目围绕以下愿景，即未来一代智能手机将能够通过内置的频谱嗅探器以及移动设备的共享用法信息进行实时频谱感测和共享通信环境。这项研究应使从现有的认知无线电设计方法转变为使用频谱共享的范式转变。智能手机光谱嗅探的低成本集成宽带RF设计的创新实现，结合新型频谱共享技术，将对智能手机设计产生引人注目的变革性影响，并启用有效的光谱共享。教育活动将通过激发和吸引中学和高中学生的工程群体来发展国家需求的熟练劳动力。该项目以这个愿景为基础，主张射电频率（RF）硬件和频谱感测的联合设计，旨在启用使用智能手机硬件上的最小动态范围和功率消耗要求，以实现吸引使用的频谱共享。在这个共同的主题下，该项目包括以下研究和教育推力。 i）用于智能手机感应的低成本RF体系结构。推力我专注于用于光谱传感和数据传输的低成本，集成的宽带RF设计。光谱嗅觉杠杆共享用法信息，可检测从1 GHz到18 GHz的RF信号，具有高动态范围和灵敏度，并且数字发射机可以使用低手机功率消耗的调制 - 不可能的数据传输。基于RF硬件的低空设计，分别在Therusts II和III中探索了数据库辅助频谱访问和分布式频谱访问。 ii）Waze启发的数据库辅助频谱共享。沿着与Waze应用程序中的同一行，数据库用于从智能手机中收集频谱使用信息，并以实时位置特定的使用信息和一组潜在的空置通道来响应各个用户的请求。然后，每个用户进行精制传感，然后进行数据传输。 iii）Waze启发的用法 - 意识分布式频谱共享。 Thrust III致力于研究分布式频谱共享，在该分布频谱共享中，仅在附近智能手机用户中共享使用信息。 iv）通过执行包括课程任务和K-12外展活动的各种活动来整合教育和外展的研究。