基于LTE下行链路的MIMO优化算法研究  

Optimized MIMO Algorithm for LTE Downlink Transmission

作　　者：刘可文[1] 刘泉[1] 马哲锐[2] 

机构地区：[1]武汉理工大学信息工程学院,武汉430070 [2]广东省电信规划设计院有限公司,广州510630

出　　处：《武汉理工大学学报》2011年第3期149-152,共4页Journal of Wuhan University of Technology

基　　金：国家自然科学基金(50775167);国家科技重大专项课题(2009zx03002-009)

摘　　要：为了改善LTE系统在中高速场景反馈信道信息具有高误码率的问题,结合LTE现有的MIMO技术,提出以最小错误概率为准则预测反馈的信道信息的优化算法并对其实现复杂度进行了分析。仿真结果显示,该优化算法不仅达到系统容量和传输质量的良好折中,而且避免了额外的复杂度开销。This work deals with the existed problems in medium and high-speed scenes,based on the present LTE MIMO technology,an optimized MIMO scheme is presented in this paper.It uses the minimum error probability as the criteria to predict the feedback channel information.The performances of the optimized algorithm and implementation complexity have been analyzed.The results show that it not only achieves the good tradeoff between the system capacity and coverage quality,but also can avoid excess complexity overhead.

关 键 词：LTE 自适应MIMO 容量最大化 最小错误概率 

分 类 号：TN911.22[电子电信—通信与信息系统]