Collaborative Research: A Multi-Layer Approach Towards Reliable Cognitive Radio Networks

协作研究：实现可靠认知无线电网络的多层方法

• 批准号: 1443889
• 负责人: Wenjing Lou
• 金额: $ 42.75万
• 依托单位: Virginia Polytechnic Institute and State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2014
• 资助国家: 美国
• 起止时间: 2014-10-01 至 2019-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1443889&HistoricalAwards=false
• 关键词: Collaborative; Research; Multi; Layer; Approach

The development of radio technologies that support efficient and reliable spectrum sharing is an enabler for utilizing the spectrum being made available through the National Broadband Plan. Software defined radios represent a promising technology that supports spectrum sharing as evidenced by the large amount of algorithms and protocols that allow for cognitive radio networks (CRNs) to be deployed. Unfortunately, the economic promise of dynamic spectrum access is easily undermined if cognitive radio users act dishonestly or maliciously, thereby subverting protocols that are founded on the cooperation of users. It is therefore important that mechanisms are developed that ensure the trustworthy operation of CRNs in the presence of potentially malicious or malfunctioning wireless nodes. The objective behind the project's research activities is to develop technological solutions that ensure that cognitive radios operate in trustworthy manner in spite of potential security threats. As a result of this research effort, it is possible for radio spectrum to be more reliably utilized, thereby ensuring that the economic opportunities associated with the radio spectrum are fairly utilized by everyone. The educational impact of the work comes from its multi-disciplinary foundation, broadening student views of wireless system design, and guiding the next generation of wireless engineer to include security and reliability in the design process. Wireless technologies are an enabler for economic growth in the United States, and cognitive radio networks are an emerging form of wireless system that make spectrum access more available to the broader population. Unfortunately, cognitive radio systems are susceptible to threats that undermine the correct operation of their algorithms and protocols, and thus solutions that support the secure operation of cognitive radio networks are needed. This project ensures the trustworthy operation of cognitive radio networks by: 1) developing algorithms that ensure the correct operation of spectrum sensing procedures upon which spectrum access protocols rely; 2) developing traffic monitoring tools that identify improper communication activity by cognitive radio devices; and 3) developing new forms of interference-resistant communications that ensure that cognitive radio communication continues reliably in the face of interference. The research effort is inter-disciplinary, pulling from statistical tools to network traffic analysis to communications theory to support the secure operation of cognitive radio networks. The algorithms and protocols developed in this project are complemented by a systems prototyping and experimentation effort aimed at guaranteeing that the technologies developed are suitable for deployment in real wireless systems.

支持高效、可靠频谱共享的无线电技术的发展是利用国家宽带计划提供的频谱的推动因素。软件定义无线电是一种有前景的技术，支持频谱共享，大量允许部署认知无线电网络 (CRN) 的算法和协议就证明了这一点。不幸的是，如果认知无线电用户的行为不诚实或恶意，动态频谱接入的经济前景很容易被破坏，从而破坏建立在用户合作基础上的协议。因此，开发能够确保 CRN 在存在潜在恶意或故障无线节点的情况下可靠运行的机制非常重要。该项目研究活动的目标是开发技术解决方案，确保认知无线电在存在潜在安全威胁的情况下以值得信赖的方式运行。这项研究工作的结果是，无线电频谱可以得到更可靠的利用，从而确保每个人都能公平地利用与无线电频谱相关的经济机会。这项工作的教育影响来自于其多学科基础，拓宽了学生对无线系统设计的视野，并指导下一代无线工程师将安全性和可靠性纳入设计过程。 无线技术是美国经济增长的推动者，而认知无线电网络是一种新兴的无线系统形式，可以让更广泛的人群更容易获得频谱。不幸的是，认知无线电系统容易受到破坏其算法和协议正确运行的威胁，因此需要支持认知无线电网络安全运行的解决方案。该项目通过以下方式确保认知无线电网络的可信运行：1）开发算法，确保频谱接入协议所依赖的频谱感知程序的正确运行； 2）开发交通监控工具，识别认知无线电设备的不当通信活动； 3) 开发新形式的抗干扰通信，确保认知无线电通信在面对干扰时继续可靠地进行。这项研究工作是跨学科的，从统计工具到网络流量分析，再到通信理论，以支持认知无线电网络的安全运行。该项目开发的算法和协议得到了系统原型设计和实验工作的补充，旨在保证所开发的技术适合在实际无线系统中部署。