CPS: Medium: Collaborative Research: The Foundations of Implicit and Explicit Communication in Cyberphysical Systems

本研究的目的是为理解网络物理系统中的内隐和外显交流提供理论基础。这种方法有两个方面：(A)开发新的信息理论工具，以揭示与经典网络信息理论类似并兼容的网络中隐含通信的本质；(B)将无线生态系统本身视为一个网络-物理系统，其中频谱是由必须经过认证才能满足安全和性能目标的异类交互网络系统操纵的物理底物。该项目的智力优势来自于正在开发的变革性技术方法。理解内隐沟通的关键是用近似最优范式结合球体包装和认知无线电频道的新思想来攻击40年前未解的Witsenhaus遇到的例子，这是一个概念上的突破。这些技术为解决长期以来被认为从根本上难以解决的分布式控制问题开辟了全新的数学途径。它们指导着非线性控制策略的发展，这些策略比最好的线性策略好几个数量级。理解网络物理系统中显式通信的关键是在分布式环境中主动学习、检测和估计的新方法，这些方法结合了最坏情况和概率元素。除了许多不同的应用程序(互联网、智能电网、智能交通等)。对于异质网络-物理系统本身，这项研究触及了无塔政策：允许对下一代网络进行原则性的政府法规制定。将对研究生(包括女性)和博士后学者进行培训，并将研究成果纳入本科生和研究生课程。

The objective of this research is to develop the theoreticalfoundations for understanding implicit and explicitcommunication within cyber-physical systems. The approach istwo-fold: (a) developing new information-theoretic tools toreveal the essential nature of implicit communication in amanner analogous to (and compatible with) classical networkinformation theory; (b) viewing the wireless ecosystem itselfas a cyber-physical system in which spectrum is the physicalsubstrate that is manipulated by heterogeneous interactingcyber-systems that must be certified to meet safety andperformance objectives.The intellectual merit of this project comes from thetransformative technical approaches being developed. The key tounderstanding implicit communication is a conceptualbreakthrough in attacking the unsolved 40-year-old Witsenhausencounterexample by using an approximate-optimality paradigmcombined with new ideas from sphere-packing and cognitive radiochannels. These techniques open up radically new mathematicalavenues to attack distributed-control problems that have longbeen considered fundamentally intractable. They guide thedevelopment of nonlinear control strategies that are provablyorders-of-magnitude better than the best linear strategies. Thekeys to understanding explicit communication in cyber-physicalsystems are new approaches to active learning, detection, andestimation in distributed environments that combine worst-caseand probabilistic elements.Beyond the many diverse applications (the Internet, the smartgrid, intelligent transportation, etc.) of heterogeneouscyber-physical systems themselves, this research reaches out towireless policy: allowing the principled formulation ofgovernment regulations for next-generation networks. Graduatestudents (including female ones) and postdoctoral scholars willbe trained and research results incorporated into both theundergraduate and graduate curricula.