CyberSystem: A Decision-Theoretical Approach to Resource-Constrained Cyberinfrastructure

本提案重点研究资源受限网络基础设施中频谱和节能介质接入和路由。它开发了使能技术，允许无处不在的传感、无线通信和异构网络的无缝集成。智力优势：频谱、信道和流量动态的联合开发构成了本研究的统一主题。本研究旨在以决策理论为基础，为跨层设计的方法论奠定坚实的理论基础。该方法集成了频谱感知与频谱接入、信号处理与流量估计、变化检测与机会路由、能量和功率约束与信道衰落和流量统计。最终目标是一个流量自适应、频谱灵活和资源高效的网络基础设施。更广泛的影响：作为一个交叉信号处理和无线网络的多学科项目，本研究促进了不同研究团体之间的互动和合作，并促进了独立学会为推进网络基础设施所做的研究成果的汇编。该项目所产生的具体研究课题丰富了本科和研究生课程，激发了本科生攻读工程研究生学位的兴趣。特别值得一提的是，拟议中的与康奈尔大学（Cornell University）的暑期交流项目促进了对代表性不足的学生群体的拓展。此外，该研究还导致了一个与工业界的合作项目，该项目解决了资源受限的网络基础设施设计的几个核心实际问题，可能导致技术转让。

This proposal focuses on spectrum- and energy-efficient medium access and routing in resource-constrained cyberinfrastructure. It develops the enabling technology that allows the seamless integration of ubiquitous sensing, wireless communications, and heterogeneous networking. Intellectual Merit: The joint exploitation of spectrum, channel, and traffic dynamics forms the unifying theme of this research. The proposed research aims to put on firm theoretic ground the methodology of cross-layer design by pursuing a decision-theoretic approach. This approach integrates spectrum sensing with spectrum access, signal processing for traffic estimation and change detection with opportunistic routing, energy and power constraints with channel fading and traffic statistics. The ultimate goal is a cyberinfrastructure that is traffic adaptive, spectrum agile, and resource efficient.Broader Impacts: As a multidisciplinary project intersecting signal processing and wireless networking, this research promotes interaction and collaboration across different research communities and facilitates compilation of research efforts made by independent societies for the advance of Cyberinfrastructure. Specific research topics arising from this project enrich undergraduate and graduate curriculum and stimulate the interests of undergraduate students in pursuing a postgraduate degree in engineering. In particular, the proposed summer exchange program with Cornell University promotes outreach to underrepresented student groups. In addition, this research leads to a collaborative project with industry that addresses several practical issues central to the design of resource-constrained Cyberinfrastructure, potentially resulting in technology transfer.