I/UCRC: Collaborative Research: Cognitive MIMO Communications for Dynamic-spectrum Wireless Networks

项目主任对连接一(C1)中心的建议#1230896&amp；1231043 Kiaei和Krunz该提案寻求为位于亚利桑那州立大学(牵头站点)和亚利桑那大学的连接一(C1)中心提供资金。基础研究的资金申请是由NSF批准的申请授权的，NSF 11-570。征集邀请研究所/大学合作研究中心提交支持行业定义的基础研究的建议。认知无线电(CR)和多输入多输出(MIMO)技术近年来受到了极大的关注。前者被认为是提高频谱利用率的关键使能技术，而后者已经证明了自己是提高频谱效率的强大信号处理技术。通过侦听和/或探测，CRS可以在临时可用的频谱频段上机会性地通信，同时避免与频谱许可的主用户(PU)的干扰。该项目致力于开发在具有多天线能力的认知无线网络中优化网络资源的新技术。在同质和异质的机会性频谱环境中，将同时研究集中式和分布式解决方案。将开发自适应速率和最佳天线波束形成策略。该工作还探索了重新配置认知MIMO系统天线单元的新方法。预计拟议的项目将在认知MIMO通信和可重构天线设计领域产生重大技术影响。将开发有效的解决方案，并从理论和实验上进行验证。这些解决方案将促进新一代高数据速率机会性服务和应用的推出，包括机会性媒体交付。联网的消费电子产品将特别受益于拟议的研究。将利用PI与雷神公司在CR系统上的广泛合作，实现拟议解决方案的原型可能性。参与该项目的研究生将在CMIMO设计方面获得宝贵的理论和实践经验。

Program Director's Recommendation Center for Connection One (C1) Proposal # 1230896 & 1231043 Kiaei and Krunz This proposal seeks funding for the Center for Connection One (C1) located at the Arizona State University (lead site) and the University of Arizona. Funding Requests for Fundamental Research are authorized by an NSF approved solicitation, NSF 11-570. The solicitation invites I/UCRCs to submit proposals for support of industry-defined fundamental research. Cognitive radio (CR) and multi-input multi-output (MIMO) technologies have received great attention in recent years. While the former is viewed as a key enabling technology to improve spectrum utilization, the latter has already proved itself as a powerful signal processing technique for increasing spectral efficiency. Through sensing and/or probing, CRs can opportunistically communicate on temporarily available spectrum bands while avoiding interference with spectrum-licensed primary users (PUs). This project is focused on developing novel techniques for optimizing network resources in a cognitive wireless network with multi-antenna capability. Both centralized and distributed solutions will be studied, in homogeneous and heterogeneous opportunistic spectrum environments. Adaptive rate and optimal antenna beam forming strategies will be developed. The proposed work also explores new ways for reconfiguring the antenna elements of a cognitive MIMO system. The proposed project is expected to have significant technological impact in the areas of cognitive MIMO communications and reconfigurable antenna design. Efficient solutions will be developed and validated theoretically and experimentally. These solutions will facilitate the introduction of a new generation of high data rate opportunistic services and applications, including opportunistic media delivery. Networked consumer electronics will particularly benefit for the proposed research. The PIs extensive collaboration with Raytheon on CR systems will be leveraged to enable prototyping possibilities of the proposed solutions. Graduate students involved in this project will gain valuable theoretical and practical experience on CMIMO designs.