项目名称: MIMO认知无线电系统的最优线性联合收发机设计的统一框架研究
项目编号: No.61201137
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: 刘伟
作者单位: 西安电子科技大学
项目金额: 25万元
中文摘要: 本项目考虑Underlay场景下的认知无线电系统,分别针对点对点MIMO单个认知用户通信系统、多点对点多个MIMO认知用户的MAC上行通信系统、点对多点的多个MIMO认知用户的BC下行通信系统、以及多点对多点多个MIMO认知用户的干扰信道通信系统,拟运用受控理论、半正定规划、对偶变换、增强Fritz John条件、礼貌注水,子梯度法等多项关键理论与算法,为不同的优化准则条件下的所推导的不同的最优线性联合收发机建立统一架构,从而使每一种最优线性联合收发机在统一框架内都能找到与之相对应的标准形式,从根本上解决线性联合收发机的设计问题。
中文关键词: MIMO;认知无线电;收发机设计;认知异构网络;
英文摘要: In the context of the Underlay Cognitive Radio system, this project attempts to propose the unified framework design schemes of different optimal linear joint transceivers resulted from different optimizaion crireria, for the cases of point-to-point single MIMO cognitver user transmission, multiple-point-to-point multiple cognitiver users multiple access channel (MAC) uplink transmission, multiple cognitiver users point-to-multiple-point broadcast channel (BC) downlink transmission and multiple-point-to-multiple-point interference channel transmission system, respsectively, based on joint utilization of majorizaiton theory, semidefinite programming, dual tranfromaion, enhanced Fritz John condtion, Polite water-filling Transformation, subgradient algorthm and so on. Consenquely, for each optimal linear joint transceiver imposed by some given optimization criterion, there exists a corresponding coninial form whithin the unified framework. Hence the design of optimal linear transceiver can be completely charaterized.
英文关键词: MIMO;Cognitive Radio;Transceiver Design;Cognitive Heterogeneous Networks;