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快速时变信道下的基扩展模型信道估计性能分析

Journal of Shanghai Normal University(Natural Sciences)(2019)

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Abstract
针对快速时变信道,提出了一种基于复指数基扩展模型(CE-BEM)的线性最小均方误差(LMMSE)信道估计方法,对信道估计的结果使用离散长椭球序列(DPSS)进行平滑处理,并相应提出了基于迭代的载波间干扰(ICI)消除信道均衡方法.仿真结果表明:在高多普勒信道场景下,该方法系统误码性能较传统信道估计方法有一定程度的提升.
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Key words
channel estimation,base extended model,fast time-varying channel,inter-carrier interference (ICI) cancellation
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