EAGER: SC2: Efficient, Collaborative Spectrum Sharing through a Systems and Optimal Control Approach

目前，无线电频谱被划分为仅可用于授权用户的固定频带。 这些频带的低利用率，加上呈指数增长的需求，导致了无线接入的频谱稀缺问题。 该奖项的工作预计将产生范式转变的创新，通过促进不同无线网络和用户之间的频谱动态共享，实现显着提高频谱利用率。这项研究将为频谱分配的公共政策提供信息，为无线用户带来更好的服务质量和更快的互联网接入，并实现新的多媒体应用。 学生，特别是那些来自代表性不足的群体，将获得与尖端无线技术的实践经验。该奖项的工作有两个独特的研究方向，预计将产生重大影响。首先，将开发用于协作频谱共享的系统和最优控制方法。这种方法依赖于解决方案的所有组件之间的协作决策（例如，频谱感测、通信、推理和控制）;系统内做出的所有决策都考虑到整个系统目标。为了实现广泛的合作决策，新的想法，从事件触发和自触发控制将被使用。这些控制框架不是周期性地更新控制信号，而是分别在应当更新信号时和应当获得新信息时引入决策。其次，将调查信任建立方案的使用，其明确目标是激励网络之间的合作。作为这项研究任务的一部分，将开发一个信任或声誉指标，沿着可调算法，使内部网络性能和全局网络性能之间的平衡得分最大化。 拟议的频谱高效通信和无线电环境理解研究对于实现频谱领域的合作也至关重要。

Currently radio spectrum is partitioned into fixed bands that are available only to licensed users. The low utilization of these bands, coupled with exponentially increasing demand, has led to the problem of spectrum scarcity for wireless access. Work on this award is expected to yield paradigm-shifting innovations that will achieve significantly higher spectrum utilization by facilitating dynamic sharing of spectrum among different wireless networks and users. The research will inform public policy on spectrum allocation, lead to better quality of service and faster Internet access for wireless users, and enable new multimedia applications. Students, particularly those from underrepresented groups, will acquire hands-on experience with cutting edge wireless technologies.The work on this award has two unique research directions that are expected to have significant impact. First, a systems and optimal control approach to collaborative spectrum sharing will be developed. This approach relies on cooperative decision making among all components of the solution (e.g., spectrum sensing, communication, reasoning, and control); all decisions made within the system are mindful of the overall system objective. In order to achieve broadly cooperative decision making, new ideas from event-triggered and self-triggered control will be used. Rather than periodically updating control signals, these control frameworks introduce decision making when signals should be updated and when new information should be obtained, respectively. Second, the use of trust establishment schemes will be investigated, with the explicit goal of incentivizing collaboration among networks. As part of this research task, a trust, or reputation, metric will developed, along with tunable algorithms that maximize the balanced score between internal network performance and global network performance. The proposed research on spectrally efficient communications and radio environment understanding will also be critically important for enabling collaboration in the spectrum domain.