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.
出处
《武汉理工大学学报》
CAS
CSCD
北大核心
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)
关键词
LTE
自适应MIMO
容量最大化
最小错误概率
long time evolution
adaptive MIMO
maximum capacity
minimum error probability
