认知MIMO中继网络中的动态频谱共享和接入技术研究

项目名称： 认知MIMO中继网络中的动态频谱共享和接入技术研究

项目编号： No.61201218

项目类型： 青年科学基金项目

立项/批准年度： 2013

项目学科： 电子学与信息系统

项目作者： 钟卫

作者单位： 中国人民解放军理工大学

项目金额： 25万元

中文摘要： 认知MIMO无线电技术是提高无线频谱效率的有效技术方案，而先进无线中继技术则是提高频谱效率的另外一种非常实用且能快速实现的低成本技术方案。因此，为了进一步提高无线网络的频谱效率，部署认知MIMO中继网络将是一个非常有潜力的技术方案。动态频谱共享和动态频谱接入是认知无线电中的两个非常关键的技术。本项目拟结合博弈论、随机几何、管理学等理论方法，结合干扰对齐和物理层网络编码技术等先进技术，针对单向和双向认知MIMO中继网络，分析理想条件下获取最优性能的最佳动态频谱共享和接入技术；之后，建立非理想条件下实用有效的动态频谱共享和接入技术的理论模型，并设计分布式低复杂度的算法。本项目将为认知MIMO中继网络中的动态频谱共享和动态频谱接入技术奠定理论基础，并得到有效的设计准则和规律。

中文关键词： 认知MIMO；中继；博弈论；凸优化；预编码

英文摘要： It is known that cognitive MIMO radio can efficiently improve the spectrum efficiency, and another low cost and easy approach is to deploy advanced wireless relays. Thus, building cognitive MIMO relay networks is a potential scheme to further improve the spectrum efficiency. Dynamic spectrum sharing and dynamic spectrum access are two key technologies in cognitive radio networks. This project will study the dynamic spectrum sharing and dynamic spectrum access in the one-way or biderectional cognitive MIMO relay networks by game theory, stochastic geometry theory, management theory and so on. Especially, the emerging interference alignment and physical layer network coding technique is employed. We will first study the optimal performance bounds and the optimal strategies to achieve them under ideal conditions in the one-way or biderectional cognitive MIMO relay network. Then, we will propose the theoretic model of dynamic spectrum sharing and dynamic spectrum access under non-ideal conditions. In addition, we will design distributed and low complexity algorithms to get the efficient dynamic spectrum sharing and access strategies. This project will establish the fundamental of the dynamic spectrum sharing and dynamic spectrum access in cognitive MIMO relay networks, and obtain the efficient design laws.

英文关键词： cognitive MIMO；relay；game theory；convex optimization；precoding