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

该提案的重点是在资源受限的网络基础设施中实现频谱和节能的介质访问和路由。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。知识价值：频谱，信道和流量动态的联合开发形成了本研究的统一主题。建议的研究旨在把坚实的理论基础的跨层设计的方法，通过追求决策理论的方法。该方法集成了频谱感知与频谱接入，信号处理业务估计和变化检测与机会路由，能量和功率约束与信道衰落和业务统计。最终目标是一个网络基础设施，是流量自适应，频谱灵活，和资源效率。更广泛的影响：作为一个多学科的项目交叉信号处理和无线网络，这项研究促进了不同的研究社区之间的互动和合作，并促进汇编的研究工作所作出的独立社会的网络基础设施的进步。本项目的具体研究课题丰富了本科生和研究生课程，激发了本科生攻读工程研究生学位的兴趣。特别是，拟议中的与康奈尔大学的夏季交流计划促进了对代表性不足的学生群体的宣传。此外，这项研究导致与行业的合作项目，解决了几个实际问题的核心资源受限的网络基础设施的设计，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.