Collaborative Research: Multi-Input Multi-Output (MIMO) Aware Cooperative Dynamic Spectrum Access

协作研究：多输入多输出（MIMO）感知协作动态频谱接入

• 批准号: 1443773
• 负责人: Hang Liu
• 金额: $ 30万
• 依托单位: Catholic University of America
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2015
• 资助国家: 美国
• 起止时间: 2015-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1443773&HistoricalAwards=false
• 关键词: Collaborative; Research; Multi; Input; Output

The objective of this project is to develop a Multi-Input Multi-Output (MIMO) aware cooperative Dynamic Spectrum Access framework, termed McDysa, which enables multiple primary users and multiple secondary users to cooperate in dynamic spectrum sharing. By exploiting the underlying cognitive radio and MIMO techniques, McDysa is expected to achieve significant gains on spectrum efficiency while providing substantial enhancements to physical layer security as well. The technical merit and impact of this project are both fundamental and applied, including new problems, algorithms, and methodologies. The McDysa architecture considers multiple simultaneous primary- and secondary-user transmissions by exploiting MIMO techniques. A number of problems studied in the project may foster the development of novel techniques and methodologies toward MIMO-aware dynamic spectrum access. Examples include the novel problem of MIMO-enabled relay selection, insightful analysis of McDysa transmission capacity, and the consideration of secrecy capacity enhancement via friendly jamming. As many of the methodologies in McDysa leverage knowledge from other domains such as game theory, the research outcomes of this project may also motivate advancements of the corresponding domain-specific research. The broader impact of this project also extends to education. The project contains a detailed plan for disseminating the research results and for outreaching to students from underrepresented groups via various channels established in the past years. It also includes a plan for integrating undergraduate and graduate education with research through curriculum development and student involvement. Specifically, the testbed validation of McDysa can offer undergraduate and graduate students valuable hands-on experience, and is therefore an excellent educational vehicle to broaden the participation of students, especially those from underrepresented groups, in computer science research. Technically, this project defines novel problems and develops new performance-optimization techniques in the following three thrusts that are critical to MIMO-aware cooperative dynamic spectrum access: (i) Relay selection and resource sharing, which focuses on developing novel centralized and distributed relay selection and resource management algorithms based on game theory to enable multiple MIMO-empowered primary and secondary users to cooperate for joint optimization. (ii) Achievable transmission capacity analysis, which investigates the achievable transmission capacity of secondary networks and secrecy capacity of the primary network, and the usage of beamforming optimization to maximize such capacities. (iii) Secrecy capacity enhancement, which studies the usage of two friendly jamming mechanisms, cooperative jamming and artificial interference, in the design of novel beamforming techniques and interference signals for nulling the interference at the receivers, in order to enhance the secrecy capacity of the primary network. Besides the three thrusts, this project also includes the design and validation of a testbed that supports a number of experimental tasks for validating the effectiveness of approaches and methodologies developed in the project. This project also has strong societal impact as the rigorously proven solutions developed in the project can serve as guidelines and backbone for promoting and establishing more flexible spectrum access policies and regulations.

该项目的目的是开发多输入多输出（MIMO）意识到的合作动态频谱访问框架，称为McDysa，该框架使多个主要用户和多个次要用户能够在动态频谱共享中合作。通过利用潜在的认知无线电技术和MIMO技术，McDysa有望在频谱效率上取得显着提高，同时也为物理层安全性提供了可观的增强。该项目的技术优点和影响既是基本和应用，包括新问题，算法和方法论。 McDysa体系结构通过利用MIMO技术来考虑多个同时发生和次级用户的传输。该项目中研究的许多问题可能会促进新的技术和方法的发展，以实现MIMO-AWARE ADAIN DYAMIC SPECTRUM访问。例子包括启用MIMO接力赛的新问题，对McDysa传输能力的有见地分析以及通过友好干扰来考虑保密能力增强。 由于McDysa中的许多方法论都利用了其他领域（例如游戏理论）的知识，因此该项目的研究成果也可能激发相应领域特定研究的进步。该项目的更广泛影响也扩展到教育。该项目包含一个详细的计划，用于传播研究结果，并通过过去几年建立的各种渠道向来自代表性不足的小组的学生推广。它还包括一项计划，将本科和研究生教育与课程发展和学生参与进行研究。具体而言，McDysa的测试平台验证可以为本科和研究生提供宝贵的动手经验，因此是扩大学生的参与，尤其是来自代表性不足的人群的出色教育工具。 Technically, this project defines novel problems and develops new performance-optimization techniques in the following three thrusts that are critical to MIMO-aware cooperative dynamic spectrum access: (i) Relay selection and resource sharing, which focuses on developing novel centralized and distributed relay selection and resource management algorithms based on game theory to enable multiple MIMO-empowered primary and secondary users to cooperate for joint optimization. （ii）可实现的传输能力分析，该分析研究了二级网络的可实现的传输能力和主要网络的保密能力，以及对波束形成优化的使用以最大程度地提高此类能力。 （iii）保密能力增强，研究了两种友好的干扰机制的使用，即合作式干扰和人工干扰，在设计新型束缚技术和干扰信号的设计中，以消除接收器的干扰，以增强主网络的保密能力。除了这三个推力外，该项目还包括测试台的设计和验证，该测试台支持许多实验任务，以验证项目中开发的方法和方法的有效性。该项目也具有强烈的社会影响，因为该项目中开发的严格验证的解决方案可以作为促进和建立更灵活的频谱访问政策和法规的准则和骨干。