NeTS-NECO: Some Fundamental Problems for Performance Study of Opportunistic Spectrum Utilization

NeTS-NECO：机会频谱利用性能研究的一些基本问题

• 批准号: 0832120
• 负责人: Xiang-Yang Li
• 金额: $ 25万
• 依托单位: Illinois Institute of Technology
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-01-01 至 2013-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0832120&HistoricalAwards=false
• 关键词: NeTS; NECO; Some; Fundamental; Problems

NeTS-NECO: Some Fundamental Problems for Performance Study of Opportunistic Spectrum Utilization Summary of Proposed Research Activities: This work will develop, design, and implement efficient wireless network protocols for better spectrum utilization and study some fundamental performance bounds for networks with opportunistic spectrum utilization. This work will study the Nash Equilibrium points of the spectrum sensing game and spectrum access game when secondary users are selfish. This work will design stable distributed link scheduling and routing methods to maximize throughput, and derive some necessary and/or sufficient conditions on attainable flows. This work will also develop tractable and insightful metrics and models for wireless networks using SOPs; obtain upper and lower performance bounds for these metrics for a given set of models; define the negotiation between application and network for picking the operating point. Intellectual Merit: This work not only identifies unexplored important problems (i.e., finding equilibriums of spectrum sensing and access games, studying the capacity limits of networks with SOPs) and offers methods to solve them, but also proposes novel approaches to existing interesting problems. By modeling and analyzing the interactions of secondary users, this work can improve the design of distributed radio resource management algorithms with particular interest towards characterizing the algorithms' steady-state, convergence, and stability properties. Broader Impact: Today new wireless technologies are struggling for bandwidth. Dynamic sharing of spectrum can provide a system some flexibility. Our society will gain substantial benefits, both in the short run and in the long run, from introduction of SOP sharing. This work will greatly improve the network performance, and have broad impact on the efficient usage of scarce spectrum resource in networks and furthermore, our society. This project is expected to improve the overall wireless spectral efficiency; enable wireless devices or systems to make full use of spectral resources in an autonomous and distributed manner; stimulate new applications to take full advantage of cognitive radios for better QoS; and provide an excellent vehicle for educating students with hands-on experience.

Nets-NECO：拟议研究活动的机会频谱利用率的绩效研究的一些基本问题：这项工作将开发，设计和实施有效的无线网络协议，以更好地利用频谱利用，并研究具有机会频谱利用的网络的一些基本绩效界限。当二级用户是自私的时，这项工作将研究频谱传感游戏和频谱访问游戏的NASH平衡点。这项工作将设计稳定的分布式链接调度和路由方法，以最大化吞吐量，并在可达到的流量上得出一些必要和/或足够的条件。这项工作还将开发可使用SOP的无线网络的可进行且有见地的指标和模型。为给定的一组模型获得这些指标的上下性能边界；定义应用程序和网络之间选择操作点之间的谈判。智力优点：这项工作不仅确定了未开发的重要问题（即找到频谱感测和访问游戏的平衡，研究带有SOP的网络的容量限制），并提供解决方案的方法，而且还提出了针对现有有趣问题的新方法。通过对二级用户的相互作用进行建模和分析，这项工作可以改善分布式无线电资源管理算法的设计，特别感兴趣地表征该算法的稳态，收敛性和稳定性。更广泛的影响：如今，新的无线技术正在为带宽而苦苦挣扎。频谱的动态共享可以为系统提供一些灵活性。从引入SOP共享，我们的社会将在短期内还是长期从长远来看获得可观的好处。这项工作将大大改善网络性能，并对网络和我们社会的稀缺资源的有效使用产生广泛的影响。预计该项目将提高整体无线光谱效率；启用无线设备或系统以自主和分布式方式充分利用光谱资源；刺激新的应用，以充分利用认知收音机以获得更好的QoS；并为教育学生提供实践经验的方式提供出色的工具。