CAREER: Secure Database-Driven Dynamic Spectrum Sharing

数据库驱动的动态频谱共享（DSS）是FCC批准的用于增加无线频谱接入的关键使能技术范例。在这样的系统中，地理位置数据库管理员（DBA）接受来自主要用户的注册并确定频谱可用性，和次用户都需要在使用前向DBA询问任何感兴趣的频谱的可用性。驱动的DSS系统是在战略位置部署少量专用频谱传感器，并将大多数频谱感测任务外包给无处不在的移动的用户。鉴于日益强大的移动的设备广泛渗透到日常生活中以及DSS在未来移动的通信系统中的可预见的流行，这种方法不仅是高度可行的，而且预计比部署专用分布式频谱传感器的大规模网络更具成本效益。这个项目是调查几个基本的安全和隐私的挑战与数据库驱动的DSS系统武装频谱感知外包。具体而言，该项目有四个主要的重点：（1）在存在虚假频谱测量的情况下安全的无线电环境地图构建;（2）用于众包频谱感知的激励兼容和差分私有机制;（3）用于频谱滥用检测的物理层二次用户认证技术;（4）用于频谱滥用检测的物理层二次用户认证技术。以及（4）通过测量活动、模拟研究、原型和实验的组合进行性能评估。该项目将积极引导研究成果进入本科和研究生课程的开发，让本科生和代表性不足的学生参与研究，并包括对K-12，代表性不足，海外学生以及当地军事社区的外联活动。

Database-driven dynamic spectrum sharing (DSS) is a key enabling technical paradigm approved by FCC for increasing wireless spectrum access. In such a system, a geo-location database administrator (DBA) accepts registrations from primary users and determines spectrum availability, and secondary users are all required to inquire the DBA about the availability of any interested spectrum before using it. An effective approach to improve the spectrum-estimation accuracy in database-driven DSS systems is to deploy a small number of dedicated spectrum sensors at strategic locations and outsource most spectrum-sensing tasks to ubiquitous mobile users. This approach is not only highly feasible given the wide penetration of increasingly powerful mobile devices into everyday life and the foreseeable prevalence of DSS in future mobile communication systems, but also expected to be much more cost-effective than deploying a large-scale network of dedicated distributed spectrum sensors. This project is to investigate several fundamental security and privacy challenges associated with database-driven DSS systems armed with spectrum-sensing outsourcing. Specifically, there are four main thrusts in this project: (1) secure radio environment map construction in the presence of false spectrum measurements; (2) incentive-compatible and differentially-private mechanisms for crowdsourced spectrum sensing; (3) physical-layer secondary user authentication techniques for spectrum misuse detection; and (4) performance evaluation through a combination of measurement campaign, simulation study, prototyping, and experimentation. The project will actively channel the research results into development of undergraduate and graduate curricula, engage undergraduate and under-represented students into research, and include outreach activities to K-12, underrepresented, and oversea students as well as the local military community.