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TD-LTE系统多普勒预编码分集技术研究

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摘要 TD-LTE系统存在信道的多径效应和多普勒频偏,导致接收信号是一种有一定频带宽度的混合信号,即所谓的多普勒扩展。多普勒分集技术是解决多普勒扩展现象的关键环节。构建了一种满秩方阵范德蒙预编码矩阵来获得系统的多普勒分集增益。它不改变现有的系统结构,节约了系统的成本。以最小化误码率为前提,给出了这种编码矩阵具体形式。仿真结果表明该方法不依赖于信号的调制方式,在获得多普勒分集增益的同时取得较大的编码增益,能够使系统误码率降低。其性能明显优于其它多普勒分集技术。
出处 《中国新通信》 2013年第7期45-47,共3页 China New Telecommunications
基金 安徽省教育厅自然科学基金重点项目(KJ2008A43ZC)
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参考文献6

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